Year	current US$
1980	1059085441.18162
1981	1090104794.91385
1982	1018374546.80817
1983	974759069.685994
1984	1027673265.6999
1985	1007754597.95477
1986	1143224500.51262
1987	1028087577.29984
1988	963871190.024455
1989	1028756633.92262
1990	1134992349.11785
1991	1181779075.61687
1992	1308827810.22975
1993	1400146953.42238
1994	1537532315.02788
1995	1704263889.23876
1996	1866447738.29717
1997	1799157421.47616
1998	1399203500.57788
1999	1638382181.67838
2000	1499661422.36525
2001	1448390538.41361
2002	1668991466.62121
2003	2058431119.50665
2004	2456823375.4314
2005	2739575925.11958
2006	2659902640.97122
2007	3001245676.60353
2008	3146962628.53256
2009	2618326753.31704
2010	2755543307.40804
2011	3188678246.81982
2012	3335040622.26642
2013	3637203588.75912
2014	4013577985.77773
2015	3804874914.94509
2016	4051733590.22091
2017	4258676840.42148
2018	4511182596.3622
2019	4327564742.68142
2020	3616986133.12772
2021	3467195322.36016