; and the Trust Fund shall pay interest to the general fund on the amount so transferred on the first day of any month at a rate (calculated on a daily basis, and applied against the difference between the amount so transferred on such first day and the amount which would have been transferred to the Trust Fund up to that day under the procedures in effect on January 1, 1983) equal to the rate earned by the investments of the Trust Fund in the same month under subsection (d). . (b) Required actuarial analysis Section 201(c) of the Social Security Act is amended by striking the fourth sentence in the matter following paragraph (5) and inserting the following: Such report shall also include actuarial analysis of the benefit cost with respect to disabled beneficiaries and their auxiliaries, to retired beneficiaries and their auxiliaries, and to survivor beneficiaries. . (c) Board of Trustees (1) Board of Trustees of Social Security Trust Fund Section 201(c) of the Social Security Act, as amended by subsection (b) of this section, is further amended in the matter preceding paragraph (1) by striking the Federal Old-Age and Survivors Insurance Trust Fund and the Federal Disability Insurance Trust Fund (hereinafter in this title called the Trust Funds ) and inserting the Social Security Trust Fund (in this title referred to as the Trust Fund ) . (2) Continuity of Board of Trustees The Board of Trustees of the Social Security Trust Fund created by the amendment made by subsection (a) shall be a continuous body with the Board of Trustees of the Federal Old-Age and Survivors Insurance Trust Fund and the Federal Disability Insurance Trust Fund in operation prior to the effective date of such amendment. Individuals serving as members of the Board of Trustees of the Federal Old-Age and Survivors Insurance Trust Fund and the Federal Disability Insurance Trust Fund as of the effective date of such amendment shall serve the remainder of their term as members of the Board of Trustees of the Social Security Trust Fund. (d)