2017 637 vehicles 2016 335 vehicles 2015 474 vehicles 2014 1,278 vehicles 2013 3,959 vehicles 2012 4,592 vehicles 2011 5,198 vehicles 2010 4,893 vehicles 2009 5,347 vehicles 2008 6,179 vehicles 2007 5,360 vehicles 2006 4,620 vehicles 2005 4,628 vehicles 2004 5,155 vehicles 2003 4,771 vehicles 2002 5,075 vehicles 2001 3,769 vehicles 2000 3,414 vehicles 1999 3,375 vehicles 1998 2,660 vehicles 1997 3,753 vehicles 1996 4,328 vehicles 1995 3,796 vehicles 1994 3,399 vehicles 1993 3,235 vehicles 1992 2,568 vehicles 1991 3,119 vehicles 1990 3,338 vehicles 1989 3,575 vehicles 1988 3,541 vehicles 1987 3,268 vehicles 1986 2,827 vehicles 1985 3,685 vehicles 1984 3,527 vehicles 1983 3,226 vehicles 1982 3,108 vehicles 1981 2,321 vehicles 1980 2,379 vehicles