The following subjects are exempt from taxation for state, county or local purposes:
§ 137.100, RSMo
RSMo 1939 §§ 10937, 10938, A.L. 1945 p. 1799 § 5, A.L. 1959 H.B. 108, A.L. 1974 S.B. 333, A.L. 1999 S.B. 219, A.L. 2003 S.B. 11, A.L. 2004 H.B. 795, et al. merged with H.B. 1182, A.L. 2005 H.B. 58 merged with H.B. 186 merged with H.B. 461 merged with H.B. 487, A.L. 2007 H.B. 654 & A.938, A.L. 2013 H.B. 142