2018 311 vehicles 2017 1,256 vehicles 2016 1,737 vehicles 2015 2,592 vehicles 2014 3,973 vehicles 2013 5,045 vehicles 2012 7,139 vehicles 2011 5,823 vehicles 2010 7,663 vehicles 2009 3,872 vehicles 2008 15,939 vehicles 2007 35,034 vehicles 2006 39,776 vehicles 2005 16,927 vehicles 2004 43,065 vehicles 2003 50,802 vehicles 2002 56,749 vehicles 2001 58,478 vehicles 2000 50,864 vehicles 1999 33,256 vehicles 1998 39,877 vehicles 1997 31,912 vehicles 1996 30,071 vehicles 1995 24,657 vehicles 1994 11,555 vehicles