the reserves for each certificate of the installment type shall be based on assumed annual, semi-annual, quarterly, or monthly reserve payments according to the manner in which gross payments for any certificate year are made by the holder, which reserve payments shall be sufficient in amount, as and when accumulated at a rate not to exceed 3½ per centum per annum compounded annually, to provide the minimum maturity or face amount of the certificate when due. Such reserve payments may be graduated according to certificate years so that the reserve payment or payments for the first certificate year shall amount to at least 50 per centum of the required gross annual payment for such year and the reserve payment or payments for each of the second to fifth certificate years inclusive shall amount to at least 93 per centum of each such year’s required gross annual payment and for the sixth and each subsequent certificate year the reserve payment or payments shall amount to at least 96 per centum of each such year’s required gross annual payment: Provided, That such aggregate reserve payments shall amount to at least 93 per centum of the aggregate gross annual payments required to be made by the holder to obtain the maturity of the certificate. The company may at its option take as loading from the gross payment or payments for a certificate year, as and when made by the certificate holder, an amount or amounts equal in the aggregate for such year to not more than the excess, if any, of the gross payment or payments required to be made by the holder for such year, over and above the percentage of the gross annual payment required herein for such year for reserve purposes. Such loading may be taken by the company prior to or after the setting up of the reserve payment or payments for such year and the reserve payment or payments for such year may be graduated and adjusted to correspond with the amount of the gross payment or payments made by the certificate holder for such year less the loading so taken;

if the foregoing minimum percentages of the gross annual payments required under the provisions of such certificate should produce reserve payments larger than are necessary at 3½ per centum per annum compounded annually to provide the minimum maturity or face amount of the certificate when due, the reserve shall be based upon reserve payments accumulated as provided under preceding subparagraph (A) of this paragraph except that in lieu of the 3½ per centum rate specified therein, such rate shall be lowered to the minimum rate, expressed in multiples of one-eighth of 1 per centum, which will accumulate such reserve payments to the maturity value when due;

if the actual annual gross payment to be made by the certificate holder on any certificate issued prior to or after the effective date of this chapter is less than the amount of any assumed reserve payment or payments for a certificate year, such company shall maintain as a part of such minimum certificate reserves a deficiency reserve equal to the total present value of future deficiencies in the gross payments, calculated at a rate not to exceed 3½ per centum per annum compounded annually;

for each certificate of the installment type the amount of the reserve shall at any time be at least equal to (1) the then amount of the reserve payments set up under subparagraphs (A) or (B) of this paragraph; (2) the accumulations on such reserve payments as computed under subparagraphs (A) or (B) of this paragraph; (3) the amount of any deficiency reserve required under subparagraph (C) of this paragraph; and (4) such amount as shall have been credited to the account of each certificate holder in the form of any credit, or any dividend, or any interest in addition to the minimum maturity amount specified in such certificate, plus any accumulations on any amount or amounts so credited, at a rate not exceeding 3½ per centum per annum compounded annually;

for each certificate which is fully paid, including any fully paid obligations resulting from or effected upon the maturity of the previously issued certificate, and for each paid-up certificate issued as provided in subsection (f) of this section prior to maturity, the amount of the reserve shall at any time be at least equal to (1) such amount as and when accumulated at a rate not to exceed 3½ per centum per annum compounded annually, will provide the amount or amounts payable when due and (2) such amount as shall have been credited to the account of each such certificate holder in the form of any credit, or any dividend, or any interest in addition to the minimum maturity amount specified in the certificate, plus any accumulations on any amount or amounts so credited, at a rate not exceeding 3½ per centum per annum compounded annually;

for each certificate of the installment type under which gross payments have been made by or credited to the holder thereof covering a payment period or periods or any part thereof beyond the then current payment period as defined by the terms of such certificate, and for which period or periods no reserve has been set up under subparagraph (A) or (B) of this paragraph, an advance payment reserve shall be set up and maintained in the amount of the present value of any such unapplied advance gross payments, computed at a rate not to exceed 3½ per centum per annum compounded annually;

such appropriate contingency reserves for death and disability benefits and for reinstatement rights on any such certificate providing for such benefits or rights as the Commission shall prescribe by rule, regulation, or order based upon the experience of face-amount companies in relation to such contingencies.