Year	Total
1980	576900000
1981	583200000
1982	622800000
1983	611100000
1984	601200000
1985	612900000
1986	603900000
1987	623700000
1988	695700000
1989	603900000
1990	594000000
1991	578700000
1992	486900000
1993	465300000
1994	481500000
1995	557100000
1996	577800000
1997	615600000
1998	618300000
1999	656100000
2000	700200000
2001	687600000
2002	597600000
2003	550800000
2004	487800000
2005	395100000
2006	401400000
2007	397773000
2008	358677000
2009	340812000
2010	322839000
2011	299259000
2012	283959000
2013	295434000
2014	298998000
2015	315432000
2016	315432000