Year	current US$
1990	39412419609.2021
1991	33787730219.7027
1992	25297552915.4645
1993	13396668186.629
1994	30180251019.016
1995	44460661222.073
1996	48000188080.8621
1997	44183577558.9436
1998	44875362057.5721
1999	46582405532.6461
2000	46237754276.6738
2001	41775663092.4831
2002	43035943072.4939
2003	59785668757.8112
2004	71218086334.4486
2005	73564240744.9431
2006	89659418827.963
2007	110170568375.336
2008	110769145850.151
2009	69158796815.6048
2010	88730982930.1653
2011	102873767796.747
2012	97109695688.0389
2013	101574892053.756
2014	102192852987.427
2015	89033542069.6597
2016	89843435369.2303
2017	100684837616.789
2018	102397124704.336
2019	108082789314.431
2020	111242342536.816
2021	129222750938.125