Year	current US$
1970	0
1971	0
1972	14030000.0887364
1973	17039999.717846498
1974	26570000.2796948
1975	39099999.7220933
1976	37980000.173673
1977	37450000.2618879
1978	41090000.802650996
1979	43050000.1329929
1980	46019999.9883771
1981	45419999.9980628
1982	46290000.4740804
1983	45480000.0488758
1984	40250000.0558794
1985	39469999.70451
1986	52970000.9934604
1987	50640000.1961738
1988	55930000.057444
1989	57730000.5350262
1990	65520000.86940831
1991	49450000.3550202
1992	55699999.9303371
1993	61170000.541955195
1994	65679999.69795351
1995	84560000.9523332
1996	87990000.4137307
1997	91040000.455454
1998	82050001.0251999
1999	83950000.9994954
2000	70999999.0463257
2001	68930000.13008709
2002	65669999.500736594
2003	87250000.3743917
2004	109079999.614507
2005	137399999.482557
2006	146950000.22091
2007	175039999.682456
2008	201319996.580482
2009	165710001.241416
2010	206719999.922439
2011	255529997.304082
2012	281369999.35843104
2013	276220001.166686
2014	328590003.343299
2015	287059999.346733
2016	283320005.374029
2017	281410002.201796
2018	399689999.010414
2019	382319997.042418
2020	367370003.864169
2021	499430006.355047
2022	145469998.71544537