Year	current US$
1980	881420494.5386279
1981	819001497.235829
1982	804627869.2569416
1983	780621245.8428899
1984	852183390.9304799
1985	798542678.1044453
1986	822937195.3643848
1987	836428022.76096
1988	976183398.9033347
1989	1114536582.0114255
1990	1251625951.8355439
1991	1227780455.5706916
1992	1271583795.1265666
1993	1373907430.5795534
1994	1630218459.8716772
1995	1723891258.161646
1996	2043694178.8056445
1997	2012809580.6978235
1998	1612532237.9134064
1999	1779432468.9708867
2000	1622476837.5735738
2001	1461553909.6067078
2002	1640738655.488096
2003	1977180257.2813752
2004	2132227698.6986
2005	2369418576.282083
2006	2314580534.744894
2007	2543771098.4827404
2008	3055762063.4877367
2009	2428388818.5910907
2010	2954958899.5743628
2011	3752571539.805846
2012	4105674076.337833
2013	4113356943.277657
2014	4246704869.1200633
2015	3851958204.173158
2016	3981214719.873455
2017	4237317947.2621694
2018	4553745591.3802
2019	4540886556.980015
2020	2445849309.3781595
2021	2113239702.6838975
2022	3510917213.320852
2023	4643740140.599468