Year	current US$
1990	80163111253.3833
1991	94985871170.5322
1992	96328384322.6298
1993	105822446000.809
1994	125673827928.766
1995	143803987733.845
1996	141386228649.773
1997	125921924323.228
1998	78427880821.6925
1999	95557731927.1685
2000	104193614458.507
2001	87107366763.6484
2002	102455731525.717
2003	126266487205.12
2004	164698736994.265
2005	176544071699.878
2006	192905649305.585
2007	225352827259.674
2008	187950749538.387
2009	159145658552.081
2010	223465077031.864
2011	235674365930.24
2012	234225170692.392
2013	261946726314.813
2014	287164801157.972
2015	305851053202.6
2016	313815353562.8
2017	336630141101.997
2018	332152481098.19
2019	284917496726.451
2020	294989202088.595
2021	327120301423.054