2004 105 vehicles 2002 431 vehicles 2001 1,242 vehicles 2000 1,470 vehicles 1999 1,002 vehicles 1998 788 vehicles 1997 783 vehicles 1996 814 vehicles 1995 637 vehicles 1994 494 vehicles 1993 441 vehicles 1992 467 vehicles 1991 288 vehicles 1990 249 vehicles 1989 188 vehicles