Year	Total
1986	478370
1987	1243800
1988	8154700
1989	8515100
1990	8706400
1991	9424000
1992	8726400
1993	9895200
1994	16391000
1995	16658000
1996	16917000
1997	17725000
1998	18001000
1999	19165000
2000	21349000
2001	21428000
2002	21566000
2003	21241000
2004	19985000
2005	19789000
2006	18149000
2007	15949000
2008	14759000
2009	14349000
2010	14273000
2011	10127000
2012	8008400
2013	8893700
2014	6729400
2015	1986100
2016	780470