Year	Total
1985	62667000000
1986	69681000000
1987	80251000000
1988	93109000000
1989	103620000000
1990	118460000000
1991	131620000000
1992	146440000000
1993	161900000000
1994	183370000000
1995	203550000000
1996	225850000000
1997	246590000000
1998	237200000000
1999	262149999999.99997
2000	290440000000
2001	309890000000
2002	332020000000
2003	347760000000
2004	368030000000
2005	389480000000
2006	402990000000
2007	425410000000
2008	442610000000
2009	452450000000
2010	495030000000
2011	517570000000.00006
2012	531200000000.00006
2013	537169999999.99994
2014	540380000000
2015	545530000000
2016	551180000000