Except as provided in § 58-15-37, the adjusted premiums for any policy shall be calculated on an annual basis and shall be such uniform percentage of the respective premiums specified in the policy for each policy year, excluding any extra premiums charged because of impairments or special hazards, that the present value, at the date of issue of the policy, of all such adjusted premiums shall be equal to the sum of:
However, in applying the percentages specified in subdivisions (3) and (4) above, no adjusted premium shall be deemed to exceed four percent of the amount of insurance or uniform amount equivalent thereto. The date of issue of a policy for the purpose of §§ 58-15-35 to 58-15-38, inclusive, shall be the date as of which the rated age of the insured is determined. This section and §§ 58-15-36 to 58-15-38, inclusive, may not apply to policies issued on or after the operative date of §§ 58-15-43.1 to 58-15-43.11, inclusive.
SDCL 58-15-35