The tables that shall be used for individual annuity and pure endowment contracts issued prior to July 1, 1978, excluding any disability and accidental death benefits in the contracts are: the 1971 Individual Annuity Mortality Table or any modification of this table approved by the director, and six percent interest for single premium immediate annuity contracts, and four percent interest for all other individual annuity and pure endowment contracts.
SDCL 58-26-65