2020 322 vehicles 2019 483 vehicles 2018 427 vehicles 2017 434 vehicles 2016 343 vehicles 2015 136 vehicles 2014 260 vehicles 2013 353 vehicles 2012 400 vehicles 2011 387 vehicles 2010 511 vehicles 2009 564 vehicles 2008 763 vehicles 2007 679 vehicles 2006 598 vehicles 2005 639 vehicles 2004 620 vehicles 2003 710 vehicles 2002 639 vehicles 2001 584 vehicles 2000 648 vehicles 1999 845 vehicles 1998 1,182 vehicles 1997 1,075 vehicles 1996 2,178 vehicles 1995 2,918 vehicles 1994 2,500 vehicles 1993 1,602 vehicles 1992 2,573 vehicles 1991 2,551 vehicles 1990 6,757 vehicles 1989 7,579 vehicles 1988 1,241 vehicles 1987 1,032 vehicles 1986 1,299 vehicles 1985 1,343 vehicles 1984 1,299 vehicles 1983 1,495 vehicles 1982 7,832 vehicles 1981 19,682 vehicles 1980 20,163 vehicles