R.S., c.255, s.34; 1979, c.41, s.131; 1980, c.32, s.44; 1982, c.67, s.2; 1984, c.34, s.2; 1987, c.64, s.10; 1991, c.27, s.43; 1992, c.34, s.10; 1994, c.70, s.12