Year	Total
1985	44535000000
1986	44653000000
1987	50518000000
1988	49023999999.99999
1989	50174000000
1990	50413999999.99999
1991	51483999999.99999
1992	51180000000
1993	52675000000
1994	53309000000
1995	56587000000
1996	54835000000
1997	56851000000.00001
1998	57437000000
1999	60369000000
2000	61798000000
2001	62253000000
2002	62452000000
2003	60618000000
2004	64857000000
2005	66735000000
2006	64363999999.99999
2007	64853000000.00001
2008	66926999999.99999
2009	69063000000
2010	71070000000
2011	65854000000
2012	72390000000
2013	68036999999.99999
2014	65108999999.99999
2015	64947000000
2016	67628000000