# 厚生年金保険法 / Employees' Pension Insurance Act — 第四十三条 (Article 43)

- Law: 厚生年金保険法 (Employees' Pension Insurance Act), 昭和二十九年法律第百十五号
- English title "Employees' Pension Insurance Act": Ministry of Justice translation
- Kind: Act — the distinction between 法律 (Act), 政令 (Cabinet Order), 省令 (Ministerial Order) and 条例 (local ordinance) decides who may issue it and what it may say.
- Provision: 第四十三条 (Article 43)（年金額） — address `art-43`
- Text in force since: 2026-10-01
- URL (the page that opens at this provision): https://japanlaw.org/ja/employees-pension-insurance-act/art-43
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/329AC0000000115/art-43
- Every provision below carries its address and both URLs on the line under it.
- Japanese text: e-Gov 法令検索, Digital Agency (デジタル庁). English: as marked on each line below.

Only the Japanese as published by the government has legal effect; the text
below is a copy of it. Every English rendering below is a translation and
says which kind: the Ministry of Justice's translation, or this
site's machine translation, whose model and date the Sources list names.
They are never merged and never substituted for one another.

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### 第四十三条（年金額） — (Amount of Pension)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>art-43 · https://japanlaw.org/ja/employees-pension-insurance-act/art-43 · https://japanlaw.org/l/329AC0000000115/art-43</sup>

  **第一項**  老齢厚生年金の額は、被保険者であつた全期間の平均標準報酬額（被保険者期間の計算の基礎となる各月の標準報酬月額と標準賞与額に、別表各号に掲げる受給権者の区分に応じてそれぞれ当該各号に定める率（以下「再評価率」という。）を乗じて得た額の総額を、当該被保険者期間の月数で除して得た額をいう。附則第十七条の六第一項及び第二十九条第三項を除き、以下同じ。）の千分の五・四八一に相当する額に被保険者期間の月数を乗じて得た額とする。
  <sup>art-43/par-1 · https://japanlaw.org/ja/employees-pension-insurance-act/art-43/par-1 · https://japanlaw.org/l/329AC0000000115/art-43/par-1</sup>
  The amount of employees' old-age pension is the amount arrived at when the number of months in the insured period is multiplied by an amount equal to 5.481/1000 of the average standardized amount of remuneration for the whole period during which the person was an insured (meaning the number arrived at when the standardized monthly amounts of remuneration and the standardized amounts of bonuses in each month that constitute a basis for calculation of the insured period are multiplied by the rates provided in the relevant items of the appended table for the category of beneficiary set forth in that item (hereinafter referred to as the "revaluation rate"), and the total is divided by the number of months in the insured period; the same applies hereinafter except for cases in Article 17-6, paragraph (1) and Article 29, paragraph (3) of the Supplementary Provisions).
  <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

  **第二項**  受給権者が毎年九月一日（以下この項において「基準日」という。）において被保険者である場合（基準日に被保険者の資格を取得した場合を除く。）の老齢厚生年金の額は、基準日の属する月前の被保険者であつた期間をその計算の基礎とするものとし、基準日の属する月の翌月から、年金の額を改定する。ただし、基準日が被保険者の資格を喪失した日から再び被保険者の資格を取得した日までの間に到来し、かつ、当該被保険者の資格を喪失した日から再び被保険者の資格を取得した日までの期間が一月以内である場合は、基準日の属する月前の被保険者であつた期間を老齢厚生年金の額の計算の基礎とするものとし、基準日の属する月の翌月から、年金の額を改定する。
  <sup>art-43/par-2 · https://japanlaw.org/ja/employees-pension-insurance-act/art-43/par-2 · https://japanlaw.org/l/329AC0000000115/art-43/par-2</sup>
  If a beneficiary is an insured on September 1 of each year (hereinafter in this paragraph referred to as the "base date") (excluding a case where the beneficiary acquires status as an insured on the base date), the period during which the beneficiary was an insured before the month that includes the base date is to be the basis for the calculation of the amount of the employees' old-age pension, and the amount of pension is revised from the month following the month that includes the base date; provided, however, that if the base date falls in the period from the day on which the beneficiary forfeited status as an insured until the day on which the beneficiary again acquires status as an insured, and the period from the day on which the beneficiary forfeited status as an insured until the day on which the beneficiary again acquires status as an insured is one month or less, the period during which the beneficiary was an insured before the month that includes the base date is to be the basis for the calculation of the amount of the employees' old-age pension, and the amount of pension is revised from the month following the month that includes the base date.
  <sup>machine translation, not official</sup>

  **第三項**  被保険者である受給権者がその被保険者の資格を喪失し、かつ、被保険者となることなくして被保険者の資格を喪失した日から起算して一月を経過したときは、その被保険者の資格を喪失した月前における被保険者であつた期間を老齢厚生年金の額の計算の基礎とするものとし、資格を喪失した日（第十四条第二号から第四号までのいずれかに該当するに至つた日にあつては、その日）から起算して一月を経過した日の属する月から、年金の額を改定する。
  <sup>art-43/par-3 · https://japanlaw.org/ja/employees-pension-insurance-act/art-43/par-3 · https://japanlaw.org/l/329AC0000000115/art-43/par-3</sup>
  If a beneficiary who is an insured forfeits status as an insured and one month passes after the day on which the beneficiary forfeits status as an insured without the beneficiary's becoming an insured, the period during which the beneficiary was insured before the month in which the beneficiary forfeited status as an insured is to be the basis for the calculation of employees' old-age pension, and the amount of pension is revised as of the month that includes the day that is calculated as falling one month after the day on which the beneficiary forfeited that status (or the day falling under one of the items from item (ii) through item (iv) of Article 14, if applicable).
  <sup>machine translation, not official</sup>

---

## Cites
- art-43/par-1: 附則第十七条の六第一項 → 厚生年金保険法 附則第十七条の六第一項 (Supplementary Provisions, Article 17-6, paragraph (1)), suppl-3291-115/art-17-6/par-1 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-17-6/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-17-6/par-1
- art-43/par-1: 第二十九条第三項 → 厚生年金保険法 附則第二十九条第三項 (Supplementary Provisions, Article 29, paragraph (3)), suppl-3291-115/art-29/par-3 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-29/par-3 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-29/par-3
- art-43/par-2: この項 → 厚生年金保険法 第四十三条第二項 (Article 43, paragraph (2)), art-43/par-2 — https://japanlaw.org/ja/employees-pension-insurance-act/art-43/par-2 · https://japanlaw.org/l/329AC0000000115/art-43/par-2
- art-43/par-3: 第十四条第二号から第四号まで → 厚生年金保険法 第十四条第一項第二号 (Article 14, paragraph (1), item (ii)), art-14/par-1/item-2 — https://japanlaw.org/ja/employees-pension-insurance-act/art-14/par-1/item-2 · https://japanlaw.org/l/329AC0000000115/art-14/par-1/item-2
- art-43/par-3: 第十四条第二号から第四号まで → 厚生年金保険法 第十四条第一項第三号 (Article 14, paragraph (1), item (iii)), art-14/par-1/item-3 — https://japanlaw.org/ja/employees-pension-insurance-act/art-14/par-1/item-3 · https://japanlaw.org/l/329AC0000000115/art-14/par-1/item-3
- art-43/par-3: 第十四条第二号から第四号まで → 厚生年金保険法 第十四条第一項第四号 (Article 14, paragraph (1), item (iv)), art-14/par-1/item-4 — https://japanlaw.org/ja/employees-pension-insurance-act/art-14/par-1/item-4 · https://japanlaw.org/l/329AC0000000115/art-14/par-1/item-4

## Cited by

87 provisions cite this one. No official source publishes this direction.

- 厚生年金保険法 第二十六条第一項（三歳に満たない子を養育する被保険者等の標準報酬月額の特例） — https://japanlaw.org/ja/employees-pension-insurance-act/art-26/par-1 · https://japanlaw.org/l/329AC0000000115/art-26/par-1
- 厚生年金保険法 第四十三条第二項（年金額） — https://japanlaw.org/ja/employees-pension-insurance-act/art-43/par-2 · https://japanlaw.org/l/329AC0000000115/art-43/par-2
- 厚生年金保険法 第四十四条第一項（加給年金額） — https://japanlaw.org/ja/employees-pension-insurance-act/art-44/par-1 · https://japanlaw.org/l/329AC0000000115/art-44/par-1
- 厚生年金保険法 第四十四条の三第四項（支給の繰下げ） — https://japanlaw.org/ja/employees-pension-insurance-act/art-44-3/par-4 · https://japanlaw.org/l/329AC0000000115/art-44-3/par-4
- 厚生年金保険法 第五十条第一項（障害厚生年金の額） — https://japanlaw.org/ja/employees-pension-insurance-act/art-50/par-1 · https://japanlaw.org/l/329AC0000000115/art-50/par-1
- 厚生年金保険法 第六十条第一項第一号（年金額） — https://japanlaw.org/ja/employees-pension-insurance-act/art-60/par-1/item-1 · https://japanlaw.org/l/329AC0000000115/art-60/par-1/item-1
- 厚生年金保険法 第六十一条第三項 — https://japanlaw.org/ja/employees-pension-insurance-act/art-61/par-3 · https://japanlaw.org/l/329AC0000000115/art-61/par-3
- 厚生年金保険法 第七十八条の十第一項（老齢厚生年金等の額の改定） — https://japanlaw.org/ja/employees-pension-insurance-act/art-78-10/par-1 · https://japanlaw.org/l/329AC0000000115/art-78-10/par-1
- 厚生年金保険法 第七十八条の十八第一項（老齢厚生年金等の額の改定の特例） — https://japanlaw.org/ja/employees-pension-insurance-act/art-78-18/par-1 · https://japanlaw.org/l/329AC0000000115/art-78-18/par-1
- 厚生年金保険法 第七十八条の二十六第二項（老齢厚生年金の受給権者及び年金額の特例） — https://japanlaw.org/ja/employees-pension-insurance-act/art-78-26/par-2 · https://japanlaw.org/l/329AC0000000115/art-78-26/par-2
- 厚生年金保険法 第百条の十第一項第十号（機構への事務の委託） — https://japanlaw.org/ja/employees-pension-insurance-act/art-100-10/par-1/item-10 · https://japanlaw.org/l/329AC0000000115/art-100-10/par-1/item-10
- 厚生年金保険法 附則第七条の三第四項（老齢厚生年金の支給の繰上げ） — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-7-3/par-4 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-7-3/par-4
- 厚生年金保険法 附則第七条の三第六項（老齢厚生年金の支給の繰上げ） — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-7-3/par-6 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-7-3/par-6
- 厚生年金保険法 附則第七条の六第一項（繰上げ支給の老齢厚生年金の受給権者に基金及び存続連合会が支給する老齢年金給付の特例） — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-7-6/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-7-6/par-1
- 厚生年金保険法 附則第九条第一項（特例による老齢厚生年金の額の計算等の特例） — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-9/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-9/par-1
- 厚生年金保険法 附則第九条の二第一項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-9-2/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-9-2/par-1
- 厚生年金保険法 附則第九条の二第二項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-9-2/par-2 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-9-2/par-2
- 厚生年金保険法 附則第九条の二第三項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-9-2/par-3 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-9-2/par-3
- 厚生年金保険法 附則第九条の二第四項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-9-2/par-4 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-9-2/par-4
- 厚生年金保険法 附則第九条の三第一項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-9-3/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-9-3/par-1
- 厚生年金保険法 附則第九条の三第二項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-9-3/par-2 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-9-3/par-2
- 厚生年金保険法 附則第九条の三第三項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-9-3/par-3 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-9-3/par-3
- 厚生年金保険法 附則第九条の三第四項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-9-3/par-4 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-9-3/par-4
- 厚生年金保険法 附則第九条の三第五項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-9-3/par-5 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-9-3/par-5
- 厚生年金保険法 附則第九条の四第一項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-9-4/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-9-4/par-1
- 厚生年金保険法 附則第九条の四第三項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-9-4/par-3 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-9-4/par-3
- 厚生年金保険法 附則第九条の四第四項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-9-4/par-4 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-9-4/par-4
- 厚生年金保険法 附則第九条の四第五項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-9-4/par-5 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-9-4/par-5
- 厚生年金保険法 附則第九条の四第六項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-9-4/par-6 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-9-4/par-6
- 厚生年金保険法 附則第十一条第一項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-11/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-11/par-1
- 厚生年金保険法 附則第十一条の三第三項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-11-3/par-3 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-11-3/par-3
- 厚生年金保険法 附則第十一条の六第一項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-11-6/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-11-6/par-1
- 厚生年金保険法 附則第十三条の四第四項（老齢厚生年金の支給の繰上げの特例） — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-13-4/par-4 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-13-4/par-4
- 厚生年金保険法 附則第十三条の四第七項（老齢厚生年金の支給の繰上げの特例） — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-13-4/par-7 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-13-4/par-7
- 厚生年金保険法 附則第十三条の五第二項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-13-5/par-2 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-13-5/par-2
- 厚生年金保険法 附則第十三条の五第四項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-13-5/par-4 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-13-5/par-4
- 厚生年金保険法 附則第十三条の五第八項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-13-5/par-8 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-13-5/par-8
- 厚生年金保険法 附則第十三条の七第一項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-13-7/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-13-7/par-1
- 厚生年金保険法 附則第十五条の二第一項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-15-2/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-15-2/par-1
- 厚生年金保険法 附則第十六条第一項（加給年金額に関する経過措置） — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-16/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-16/par-1
- 厚生年金保険法 附則第十六条第二項（加給年金額に関する経過措置） — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-16/par-2 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-16/par-2
- 厚生年金保険法 附則第十六条第三項（加給年金額に関する経過措置） — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-16/par-3 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-16/par-3
- 厚生年金保険法 附則第十七条の六第一項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-17-6/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-17-6/par-1
- 厚生年金保険法 附則第十七条の七第一項（年金たる保険給付の額の改定の特例） — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-17-7/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-17-7/par-1
- 厚生年金保険法 附則第二十八条の二第一項（旧陸軍共済組合等の組合員であつた期間に関する特例） — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3291-115/art-28-2/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-3291-115/art-28-2/par-1
- 厚生年金保険法 附則第十五条第二項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3441-78/art-15/par-2 · https://japanlaw.org/l/329AC0000000115/suppl-3441-78/art-15/par-2
- 厚生年金保険法 附則第四条第二項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3481-92/art-4/par-2 · https://japanlaw.org/l/329AC0000000115/suppl-3481-92/art-4/par-2
- 厚生年金保険法 附則第五十九条第一項（老齢厚生年金の額の計算の特例） — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-3601-34/art-59/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-3601-34/art-59/par-1
- 厚生年金保険法 附則第十八条第一項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4061-95/art-18/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-4061-95/art-18/par-1
- 厚生年金保険法 附則第十八条第三項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4061-95/art-18/par-3 · https://japanlaw.org/l/329AC0000000115/suppl-4061-95/art-18/par-3
- 厚生年金保険法 附則第十九条第一項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4061-95/art-19/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-4061-95/art-19/par-1
- 厚生年金保険法 附則第十九条第三項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4061-95/art-19/par-3 · https://japanlaw.org/l/329AC0000000115/suppl-4061-95/art-19/par-3
- 厚生年金保険法 附則第十九条第四項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4061-95/art-19/par-4 · https://japanlaw.org/l/329AC0000000115/suppl-4061-95/art-19/par-4
- 厚生年金保険法 附則第十九条第五項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4061-95/art-19/par-5 · https://japanlaw.org/l/329AC0000000115/suppl-4061-95/art-19/par-5
- 厚生年金保険法 附則第二十条第一項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4061-95/art-20/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-4061-95/art-20/par-1
- 厚生年金保険法 附則第二十条第三項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4061-95/art-20/par-3 · https://japanlaw.org/l/329AC0000000115/suppl-4061-95/art-20/par-3
- 厚生年金保険法 附則第二十条第四項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4061-95/art-20/par-4 · https://japanlaw.org/l/329AC0000000115/suppl-4061-95/art-20/par-4
- 厚生年金保険法 附則第二十条第五項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4061-95/art-20/par-5 · https://japanlaw.org/l/329AC0000000115/suppl-4061-95/art-20/par-5
- 厚生年金保険法 附則第二十条の二第一項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4061-95/art-20-2/par-1 · https://japanlaw.org/l/329AC0000000115/suppl-4061-95/art-20-2/par-1
- 厚生年金保険法 附則第二十条の二第三項 — https://japanlaw.org/ja/employees-pension-insurance-act/suppl-4061-95/art-20-2/par-3 · https://japanlaw.org/l/329AC0000000115/suppl-4061-95/art-20-2/par-3
- …and 27 more at https://japanlaw.org/ja/employees-pension-insurance-act/art-43

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## Sources

- e-Gov 法令検索, Digital Agency (デジタル庁) — 厚生年金保険法 — the text in force from 2026-10-01 (https://laws.e-gov.go.jp/law/329AC0000000115/20261001_507AC0000000074), retrieved 2026-10-13
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Employees' Pension Insurance Act — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/3554/tb), retrieved 2026-10-13
- claude-sonnet-5-5 — Machine translation, batch employees-pension-insurance-act-20261013T073658-001, translated 2026-10-13
- This site's parser, version 190 — 厚生年金保険法 — structure, counts, cross-references and defined terms, computed 2026-10-13
