Year	current US$
1980	1569357918.6984792
1981	1889627659.807888
1982	1828192021.468283
1983	1828989361.8096423
1984	1653457180.849885
1985	1252659574.468085
1986	696010638.2978725
1987	844148670.2127663
1988	1150797872.3404255
1989	920212765.9574468
1990	1530319148.93617
1991	717021276.5957444
1992	571808510.6382977
1993	598936160.9178123
1994	922340660.8158354
1995	1090307417.4099534
1996	1135424164.7026339
1997	1077181079.5891767
1998	547320944.8297387
1999	487020316.2980048
2000	2332178542.553191
2001	1637254819.1489344
2002	2189989095.744681
2003	2829336436.1702127
2004	3169908510.6382966
2005	5743366755.319148
2006	7810604521.276593
2007	10449739361.702133
2008	11242392095.744677
2009	6557103191.489362
2010	7784726063.829783
2011	7735079787.234042
2012	11232763563.82979
2013	10850545478.723406
2014	10486043617.021276
2015	7327743617.021279
2016	8041382978.723402
2017	10236223404.25532
2018	10896223404.255323
2019	11821084042.553186
2020	8905334574.468082
2021	12639703191.48936