Year	current US$
1980	446492338.979067
1981	399666057.098527
1982	265802172.469431
1983	316840209.747289
1984	292276442.318036
1985	317246202.967616
1986	343627554.689302
1987	198938194.084616
1988	259403389.932854
1989	199729860.038166
1990	224061356.482667
1991	144079932.956455
1992	191828532.271472
1993	278515747.685567
1994	324228770.658028
1995	353225721.016204
1996	478110362.270854
1997	502669204.94788
1998	541977834.585207
1999	511074907.137062
2000	570777275.409213
2001	571369565.963864
2002	570123143.399576
2003	578810172.591287
2004	608757193.508684
2005	654147379.744704
2006	2074640532.94642
2007	2437898304.72362
2008	2705238007.77427
2009	2813376501.86742
2010	2932205080.36695
2011	3091483771.36048
2012	3447283721.03054
2013	3597206690.62044
2014	3659276200.82844
2015	3873046274.89239
2016	3772290962.11545
2017	4103267486.0482
2018	4334632297.30064
2019	4710553073.06794
2020	4554729587.43329
2021	5116380907.9429