2011 100 vehicles 2010 150 vehicles 2009 267 vehicles 2008 650 vehicles 2007 1,049 vehicles 2006 449 vehicles 2005 441 vehicles 2004 453 vehicles 2003 382 vehicles 2002 332 vehicles 2001 307 vehicles 2000 322 vehicles 1999 432 vehicles 1998 600 vehicles 1997 578 vehicles