Year	constant 2011 international $
1990	16945454199.365
1991	17508616866.9318
1992	18131143442.6248
1993	18733989118.9736
1994	19283575306.578
1995	19851868770.0423
1996	20500207788.869
1997	21613163646.1005
1998	22748551388.6791
1999	23376958250.4883
2000	23915364899.2298
2001	24218908437.8231
2002	24714103049.5525
2003	25179696366.6424
2004	25912425128.8994
2005	26775144047.0958
2006	27865219752.4495
2007	29027109469.1631
2008	30618641241.6736
2009	31743307705.123
2010	33005933190.0377
2011	34723365043.294
2012	36322565885.2428
2013	38475482962.8014
2014	40560898809.8589
2015	42669868636.1909
2016	44119558314.1028
2017	46206757234.0807
2018	48194252540.9587