Year	Total
1985	3964000000
1986	4318000000
1987	4386000000
1988	4614000000
1989	4646000000
1990	4842000000
1991	4669000000
1992	5183000000
1993	5560000000
1994	5850000000
1995	6013000000
1996	6615000000
1997	6910000000
1998	8166000000
1999	8939000000
2000	9134000000
2001	9951000000
2002	10940000000
2003	12012000000
2004	13233000000
2005	14396000000
2006	15325000000
2007	19462000000
2008	21616000000
2009	24158000000
2010	28144000000
2011	30730000000
2012	34788000000
2013	34668000000
2014	38693000000.00001
2015	41845000000
2016	42356000000