Source. 1935, 124:2. RL 242:4. 1943, 135:1. 1945, 31:1; 69:1. 1947, 32:1; 46:1; 101:1; 222:1. 1951, 109:1. RSA 208:3. 1961, 73:1. 1973, 31:1. 1975, 165:1. 1981, 3:1; 144:1. 1983, 1:2. 1987, 61:1. 1991, 41:1. 2001, 143:1. 2003, 35:2, eff. July 1, 2003.