No loan shall be made to any member in an aggregate amount in excess of ten percent (10%) of the credit union's unimpaired capital and surplus. In accordance with the bylaws and subject to such rules and regulations as the Administrator may prescribe, the board of directors shall determine and set the maximum unsecured loan limits subject to the limitation contained in the preceding sentence. (1915, c. 115, s. 19; 1917, c. 232, s. 4; C.S., s. 5220; 1925, c. 73, s. 3; 1935, c. 87; 1955, c. 1135, s. 2; 1961, c. 1187, s. 1; 1965, c. 956, ss. 1, 12, 13; 1969, c. 69, s. 9; 1973, c. 199, s. 5; 1975, c. 538, s. 1; 1983, c. 568, s. 5.)