Year	current US$
1980	1308108244.07216
1981	1405579737.48455
1982	1383362605.79296
1983	1551343904.45757
1984	1742812389.06786
1985	1930728868.60876
1986	2242904687.87011
1987	1967999954.5566
1988	2517547904.19068
1989	2634402615.70045
1990	2987831078.92332
1991	3351988411.15374
1992	2183454126.29259
1993	1821478330.27406
1994	2118550469.26909
1995	2735580382.57333
1996	2835401655.95987
1997	3258586926.99839
1998	3628461779.09019
1999	4072891097.31691
2000	6738349634.03496
2001	6227733308.17089
2002	5932578542.24571
2003	4705575433.09736
2004	5849428763.29304
2005	6926367155.54745
2006	7246112623.84437
2007	9218886321.37373
2008	10058058369.2207
2009	11141681348.145
2010	11307919571.3537
2011	12424718996.3262
2012	13080133523.9635
2013	14193197762.0262
2014	14474905992.9236
2015	14263278676.8635
2016	13244557183.7244
2017	14189148061.3849
2018	15620589396.7614
2019	13994089544.2649
2020	13673208282.7168
2021	19746452203.7592