2007 113 vehicles 2006 151 vehicles 2005 422 vehicles 2004 570 vehicles 2003 332 vehicles 2002 339 vehicles 2001 409 vehicles 2000 486 vehicles 1999 609 vehicles 1998 727 vehicles 1997 291 vehicles 1996 293 vehicles 1995 375 vehicles 1994 582 vehicles 1993 567 vehicles 1992 418 vehicles 1991 244 vehicles 1990 249 vehicles 1989 317 vehicles 1988 135 vehicles