Year	Total
1985	56492000000
1986	57563999999.99999
1987	59890000000
1988	60690000000
1989	54766999999.99999
1990	60004000000
1991	62161000000
1992	63576000000
1993	65878000000
1994	71455000000
1995	67828000000
1996	61170000000
1997	67435000000
1998	67610000000
1999	74781000000
2000	72420000000
2001	77325000000
2002	71671000000
2003	72030000000
2004	70483000000
2005	62277000000
2006	66818000000
2007	70877000000
2008	72008000000
2009	71499000000
2010	71238999999.99998
2011	67613999999.99999
2012	73139000000
2013	73454000000
2014	74874000000
2015	70922000000
2016	66253999999.99999