2018 368 vehicles 2017 828 vehicles 2016 629 vehicles 2015 831 vehicles 2014 1,774 vehicles 2013 1,515 vehicles 2012 638 vehicles 2011 474 vehicles 2010 613 vehicles 2009 234 vehicles 2005 477 vehicles 2004 6,638 vehicles 2003 7,769 vehicles 2002 8,062 vehicles 2001 7,122 vehicles 2000 8,116 vehicles 1999 6,018 vehicles 1998 6,558 vehicles 1997 7,964 vehicles 1996 8,515 vehicles 1995 8,809 vehicles 1994 5,750 vehicles 1993 4,317 vehicles 1992 3,858 vehicles 1991 2,352 vehicles 1990 2,355 vehicles 1989 2,003 vehicles 1988 5,688 vehicles 1987 6,698 vehicles 1986 5,759 vehicles 1985 4,943 vehicles 1984 3,152 vehicles 1983 7,113 vehicles 1982 6,192 vehicles 1981 3,664 vehicles 1980 2,221 vehicles