Year	Total
1980	1044990000
1981	1032300000
1982	1246500000
1983	1233000000
1984	1219500000
1985	1206000000
1986	2160000000
1987	2166300000
1988	2228400000
1989	2548800000
1990	2556000000
1991	3060000000
1992	3344580000
1993	3314700000
1994	3105000000
1995	3126600000
1996	3127500000
1997	3134700000
1998	3160800000
1999	3160800000
2000	3695400000
2001	4169430000
2002	4497570000
2003	4549500000
2004	4706010000
2005	4636620000
2006	4686300000
2007	4762800000
2008	4762800000
2009	4762800000
2010	4659840000
2011	4658040000
2012	4606560000
2013	4596390000
2014	4791600000
2015	4755870000
2016	4755870000