2012 176 vehicles 2011 914 vehicles 2010 1,125 vehicles 2009 936 vehicles 2008 2,463 vehicles 2007 3,243 vehicles 2006 4,310 vehicles 2005 5,459 vehicles 2004 7,356 vehicles 2003 5,491 vehicles 2002 3,505 vehicles 2001 2,795 vehicles 2000 2,108 vehicles 1999 489 vehicles