2008 135 vehicles 2007 114 vehicles 2006 138 vehicles 2005 250 vehicles 2004 520 vehicles 2003 528 vehicles 2002 384 vehicles 2001 395 vehicles 2000 326 vehicles 1999 409 vehicles 1998 510 vehicles 1997 620 vehicles 1996 283 vehicles 1995 250 vehicles 1994 335 vehicles 1993 181 vehicles 1992 160 vehicles 1991 149 vehicles 1990 166 vehicles 1989 104 vehicles