Year	current US$
1970	167840001.35585672
1971	213010001.27568832
1972	217159998.91608948
1973	306040000.1145899
1974	488659998.7372757
1975	610100001.9311906
1976	443160005.26212156
1977	490619998.8909068
1978	713800001.7460433
1979	983539999.1180743
1980	885609996.3411691
1981	1260620002.5379663
1982	939249993.2665377
1983	924299994.7592617
1984	1026159995.7775323
1985	923689995.0299416
1986	1216209997.3484871
1987	1328250001.553446
1988	2015190012.7604613
1989	2017370010.9869232
1990	2534520015.29187
1991	3357100009.9722304
1992	3877150000.469759
1993	3125819993.6896567
1994	4027339996.173978
1995	4388830026.417972
1996	4318910016.268493
1997	4199020019.754768
1998	4754460007.287563
1999	4718559980.370104
2000	4734609977.826475
2001	5667149972.397836
2002	4498249991.286546
2003	6265469939.922914
2004	8360080027.790747
2005	6570660010.054709
2006	7686109987.340868
2007	8428679995.641111
2008	9619870008.289818
2009	9596970006.424936
2010	9383989989.414812
2011	13678209923.971455
2012	14114350104.875862
2013	12554349952.030928
2014	13107400019.692265
2015	10917920037.515461
2016	13387859850.961718
2017	12457399912.059307
2018	12006259963.333607
2019	9979579994.514585
2020	14888340019.375086
2021	14724120124.90072
2022	19567840182.06969