2009 1,704 vehicles 2008 1,925 vehicles 2007 3,301 vehicles 2006 4,254 vehicles 2005 4,379 vehicles 2004 4,665 vehicles 2003 5,021 vehicles 2002 5,028 vehicles 2001 5,243 vehicles 2000 4,536 vehicles 1999 4,867 vehicles 1998 4,985 vehicles 1997 3,184 vehicles 1996 532 vehicles