2003 197 vehicles 2002 207 vehicles 2001 270 vehicles 2000 273 vehicles 1999 328 vehicles 1998 358 vehicles 1997 348 vehicles 1996 373 vehicles 1995 416 vehicles 1994 686 vehicles 1993 985 vehicles 1992 769 vehicles 1991 1,225 vehicles 1990 1,245 vehicles 1989 1,033 vehicles 1988 974 vehicles 1987 893 vehicles 1986 784 vehicles 1985 2,401 vehicles 1984 2,178 vehicles 1983 549 vehicles 1982 451 vehicles 1981 357 vehicles 1980 357 vehicles