2003 185 vehicles 2002 240 vehicles 2001 671 vehicles 2000 1,207 vehicles 1999 699 vehicles 1998 819 vehicles 1992 120 vehicles 1991 142 vehicles 1990 175 vehicles 1989 184 vehicles 1985 109 vehicles 1984 142 vehicles 1983 130 vehicles 1981 148 vehicles