Year	current US$
1990	16696138393.1081
1991	13270323749.2226
1992	18003752185.7596
1993	16540281712.188
1994	17645668905.0856
1995	23230589478.7616
1996	24379859983.9716
1997	24041591675.8377
1998	24377334771.9414
1999	24931289627.999
2000	23349666922.0518
2001	25002915837.5141
2002	25463696974.0893
2003	30276620112.9292
2004	36799036655.7098
2005	40341624197.4571
2006	46072484404.9463
2007	48058976440.3481
2008	47874336187.7264
2009	35069749519.3561
2010	43336299374.3977
2011	50149160697.1339
2012	42754203265.1044
2013	57351113385.0009
2014	63770822400.3907
2015	55546679928.9006
2016	59674438493.5195
2017	67110270746.1063
2018	67163943952.755
2019	65830320723.2386
2020	68033329894.5649
2021	84171268953.9144