Year	current US$
1970	17570365.960027102
1971	19009433.340596933
1972	21734268.534830257
1973	26529816.50030455
1974	35994511.24332233
1975	40106775.60175188
1976	40287426.700748645
1977	40444701.645525
1978	41754146.88029348
1979	44431329.774666585
1980	46947124.24466262
1981	51689636.0691117
1982	52877742.64916617
1983	48439093.07734357
1984	47363231.13471862
1985	41548740.60826141
1986	39939390.80049797
1987	40118409.87365339
1988	45931133.93425
1989	53736786.06372136
1990	55572375.46512728
1991	52533788.556628205
1992	51133123.125432596
1993	43542088.25182687
1994	39742511.24178485
1995	39969705.96970597
1996	37458801.21396054
1997	37331507.278134294
1998	29664450.925863124
1999	27328612.60809625
2000	26930980.342900205
2001	22613287.538907375
2002	21017423.608204268
2003	24778159.58066395
2004	30587565.798833407
2005	30070666.065253343
2006	29200359.389038637
2007	22766972.18896587
2008	37602264.73068721
2009	44176245.549243264
2010	47562844.61042507
2011	65071879.77871618
2012	101055722.95057963
2013	94385014.94258416
2014	99149244.4001333
2015	84863440.58019969
2016	97541943.03550526
2017	109355638.86695491
2018	130995566.30390972
2019	125160115.54781868
2020	124685688.1610939
2021	175390280.69161984
2022	153824609.47051683
2023	154127798.19354144