Year	constant 2010 US$
1990	7261609884.25758
1991	10014584691.4096
1992	15513951334.3947
1993	17978283087.1642
1994	18272877753.9635
1995	19131946530.2156
1996	19694454286.0365
1997	18995945850.0829
1998	19356868821.2272
1999	19550437509.4527
2000	19824143634.5605
2001	20874823247.1642
2002	21396693828.3914
2003	22145578112.3715
2004	23252857017.9768
2005	22510302934.063
2006	23285156149.7844
2007	24997300488.0929
2008	27391236159.3366
2009	30950139478.7396
2010	33638981301.6915
2011	33224951560.995
2012	34715406965.1741
2013	34992945273.6318
2014	38032758208.9552
2015	38745289552.2388
2016	41405674958.5406
2017	43097538971.8076
2018	42509739966.8325