Source. 1973, 544:2. 1978, 48:2. 1981, 83:4. 1982, 42:74. 1985, 204:8. 1994, 393:2. 1999, 17:11. 2000, 239:5. 2001, 158:50. 2004, 203:16. 2006, 324:17, eff. Jan. 1, 2007.