Year	current US$
1970	62129999.92072584
1971	73160000.53845347
1972	85640000.70281328
1973	175950000.47795478
1974	226280000.70527202
1975	281209995.0946867
1976	265220001.9285082
1977	298500002.8572976
1978	452610003.111884
1979	639419999.0220366
1980	711500002.350658
1981	637959996.4916707
1982	682789997.4863977
1983	610789995.5771863
1984	516559998.1658162
1985	575739998.6460806
1986	711249997.9045243
1987	837010001.0707972
1988	927579999.1376697
1989	928749995.7028778
1990	1149579993.531108
1991	1151450014.5167112
1992	1145980013.5437398
1993	1123310000.4494193
1994	1107969990.0150309
1995	1087129998.687655
1996	1105410004.8914552
1997	795770003.7155297
1998	881390003.0441583
1999	772859999.5709956
2000	661950001.7929825
2001	599089995.7548827
2002	818279998.2577561
2003	1549159996.0550663
2004	960130001.2506549
2005	1028330007.4469299
2006	1223630007.11985
2007	1267429997.7812915
2008	1758259993.0837755
2009	1641459998.5666573
2010	1765439997.7829306
2011	1936869987.2419245
2012	2341969964.7724643
2013	1781980010.1928415
2014	2257470013.8960037
2015	1602370008.3475568
2016	2093249992.1713033
2017	2422669987.844304
2018	2711149993.3097506
2019	2705610014.099629
2020	3541460014.9784255
2021	3586240007.4787455
2022	3122029988.633468