Year	Total
1985	22766000000
1986	21797000000
1987	22641000000
1988	24538000000
1989	25573000000
1990	26327000000
1991	25649000000
1992	25870000000
1993	26579000000
1994	30459000000
1995	33554000000
1996	36708000000
1997	39797000000
1998	41578000000
1999	41431999999.99999
2000	45290000000
2001	47049000000
2002	48467000000
2003	52941000000
2004	55957000000
2005	56568000000.00001
2006	56784000000
2007	59611999999.99999
2008	60821000000.00001
2009	61934000000
2010	67742999999.99999
2011	69176000000
2012	72922000000
2013	75266000000
2014	77261000000.00002
2015	82413000000
2016	89902000000