Source. 1971, 518:1. 1985, 205:2. 1986, 49:1; 189:1. 1988, 238:6. 1991, 159:1. 1992, 269:11. 1994, 224:1. 1998, 325:2. 2002, 269:1. 2006, 163:3, eff. Jan. 1, 2007; 260:34, eff. Jan. 1, 2007. 2008, 62:4, eff. July 20, 2008; 104:1, eff. Jan. 1, 2009. 2009, 144:131, eff. July 1, 2009.