Dividends. (1) At such intervals and for such periods as the board of directors may authorize, and after provision for the required reserves, the board of directors may declare dividends to be paid on shares or share certificates. Dividends may be paid at various rates, or not paid at all, with due regard to the conditions that pertain to each class of share

(2) Subject to the approval of the board of directors, accounts closed between dividend periods may be credited with dividends at the rate set by the board of directors. [1975 c.652 §43; 1985 c.206 §1; 1985 c.801 §5; 1995 c.319 §2; 2001 c.308 §4]