Year	Total
1980	3348900000
1981	3310200000
1982	3251700000
1983	3177900000
1984	3097800000
1985	3014100000
1986	2933100000
1987	2846700000
1988	2910600000
1989	2925000000
1990	2970000000
1991	3263400000
1992	3285000000
1993	3330000000
1994	2666700000
1995	3321000000
1996	3330000000
1997	3669300000
1998	3669300000
1999	4068000000
2000	4070700000
2001	4070700000
2002	4070700000
2003	4090500000
2004	4090500000
2005	4053780000
2006	4053780000
2007	4053600000
2008	4053600000
2009	4053600000
2010	4053600000
2011	4053600000
2012	4053510000
2013	4053510000
2014	4053600000
2015	4053600000
2016	4053600000