Year	current US$
1970	94675461.0230199
1971	102715967.618965
1972	117384397.726764
1973	135844583.246095
1974	142424884.354837
1975	169086784.241193
1976	210734630.737376
1977	258254687.689584
1978	301275900.444641
1979	351004649.011649
1980	419701730.609569
1981	222061608.874799
1982	205290149.014731
1983	213541510.692575
1984	234220151.660114
1985	239647686.210964
1986	255453047.29977
1987	262303804.258875
1988	269924651.748843
1989	304494221.918823
1990	328836623.641265
1991	425256564.538381
1992	492121637.782451
1993	541985825.294857
1994	570008736.084452
1995	615971109.869954
1996	638602209.923916
1997	693916748.474094
1998	748028118.394838
1999	860650445.251206
2000	881613311.487665
2001	931111136.904789
2002	988602286.3858
2003	1024858883.92551
2004	1122080159.81032
2005	1218001329.17984
2006	1364443837.91302
2007	1530759182.82152
2008	1704937400.2888
2009	1810323164.51805
2010	2180802203.80666
2011	2482751645.93993
2012	2595075904.26935
2013	2721077787.62279
2014	2711717651.94663
2015	2912386939.45063
2016	3043334257.85238
2017	3250761851.79895
2018	3412249658.89594
2019	3122629577.40099
2020	3373950643.87451
2021	3595304089.84953