Year	Total
1985	542310000
1986	561180000
1987	569480000
1988	568780000
1989	552230000
1990	515890000
1991	461940000
1992	398810000
1993	354880000
1994	317580000
1995	310750000
1996	302870000
1997	307420000
1998	304340000
1999	304770000
2000	326670000
2001	351700000
2002	383710000
2003	425730000
2004	463300000
2005	474830000
2006	485650000
2007	496790000
2008	493690000
2009	500840000
2010	511810000
2011	518850000
2012	526170000
2013	531130000
2014	534130000
2015	540740000
2016	554330000