the rate found using the Appended Table of the Supplementary Provisions according to the taxable gross income that served as the basis for calculating the amount set forth in the preceding item (if the provisions of Article 90, paragraph (1) (Averaging Taxation on Fluctuating Income and Ad Hoc Income) of the former Act applied to income tax for 1976, the adjusted income prescribed in item (i) of that paragraph, and, if the Income in Each Class that served as the basis for calculating the taxable gross income for that year included capital gains, occasional income, miscellaneous income or Ad Hoc Income not falling under miscellaneous income, the amount calculated by deeming those amounts not to have existed in accordance with the provisions of the Cabinet Order under Article 104, paragraph (1), item (i) of the former Act; hereinafter referred to as "taxable aggregate income and similar amount" through the following paragraph) and to whether there were a Claimable Spouse and any dependents that served as the basis for calculating that taxable aggregate income and similar amount, and their number.