Year	Total
1980	2133000000
1981	2276100000
1982	2675700000
1983	2744100000
1984	2797200000
1985	2833200000
1986	4872780000
1987	5115600000
1988	5096700000
1989	5085000000
1990	5060700000
1991	5213700000
1992	5215500000
1993	5215500000
1994	6099300000
1995	5273100000
1996	5205600000
1997	5456700000
1998	5396400000
1999	5395500000
2000	5394600000
2001	5452200000
2002	5448600000
2003	5442300000
2004	5474700000
2005	5503500000
2006	5796900000
2007	5793300000
2008	5481000000
2009	5481900000
2010	5481900000
2011	5481900000
2012	5481900000
2013	5481900000
2014	5481900000
2015	5481900000
2016	5481900000