2009 3,535 vehicles 2008 3,513 vehicles 2007 5,616 vehicles 2006 5,912 vehicles 2005 8,356 vehicles 2004 9,460 vehicles 2003 9,603 vehicles 2002 7,263 vehicles 2001 8,431 vehicles 2000 9,126 vehicles 1999 7,886 vehicles 1998 3,722 vehicles 1997 793 vehicles