The unearned premium reserve of every title insurer shall consist of:

(a) Such amount as would have been required to be set aside in said reserve on all policies or contracts of title insurance issued during the calendar years 1962, 1963 and 1964, if this article had been effective at and after the date that such policies or contracts were written, less the amount of withdrawals that would have been permitted if this article had been so effective; and

(b) The amount of all additions required to be made to such reserve by this article less the withdrawals therefrom permitted by this article.

(Added by Stats. 1965, Ch. 272.)