Year	Total
1985	31658000000
1986	33684000000
1987	37135000000
1988	38972000000
1989	40894000000
1990	42863000000
1991	44880000000
1992	46739000000
1993	48321000000.00001
1994	50446000000.00001
1995	53398000000
1996	56561000000.00001
1997	61000000000
1998	65158999999.99999
1999	70747000000
2000	72980000000
2001	80220000000
2002	85681000000
2003	91517000000.00002
2004	97304000000
2005	103980000000
2006	110710000000
2007	118970000000
2008	127850000000
2009	133340000000
2010	143470000000
2011	148630000000
2012	161850000000
2013	164000000000
2014	170200000000
2015	180590000000
2016	187290000000