1995 103 vehicles 1994 205 vehicles 1993 242 vehicles 1992 232 vehicles 1991 470 vehicles 1990 621 vehicles 1989 793 vehicles 1988 907 vehicles 1987 844 vehicles 1986 900 vehicles 1985 752 vehicles 1984 1,297 vehicles 1983 1,422 vehicles 1982 1,919 vehicles 1981 7,475 vehicles 1980 5,207 vehicles