Year	current US$
1960	15059999.670833299
1961	19570000.320673
1962	23760000.694543097
1963	13989999.7729808
1964	21830000.2533942
1965	25960000.2765656
1966	31569999.5737523
1967	28850000.336766202
1968	33359999.8690188
1969	37559999.9185652
1970	42919999.7689575
1971	50509999.5229393
1972	62230000.4791468
1973	68940001.282841
1974	65489999.8661131
1975	67820000.41008
1976	60940000.6029755
1977	68259999.1057068
1978	76969999.0134686
1979	93290001.3625622
1980	145269997.252151
1981	82140000.7307529
1982	71980000.4232675
1983	51979999.3690103
1984	44539999.7662753
1985	66200002.1152198
1986	112979998.284951
1987	77589999.3516505
1988	129890000.94682
1989	113570000.199601
1990	130699999.377131
1991	110750000.810251
1992	160900002.177805
1993	176930005.203933
1994	168180002.398789
1995	131629999.00803001
1996	146300003.796816
1997	150940001.24931303
1998	144750002.035871
1999	146550000.13112998
2000	167850002.88486502
2001	134570002.21684602
2002	138299998.98374102
2003	113329998.49319501
2004	202310000.419617
2005	225380001.708865
2006	289029997.102916
2007	367579996.436834
2008	544949991.589412
2009	389460003.647953
2010	281229997.072369
2011	169420001.002029
2012	214169999.079779
2013	287090007.873252
2014	244310004.089028
2015	342340004.179627
2016	278639991.857111
2017	304510002.26289
2018	323430008.370429
2019	369830006.826669
2020	351549990.311265
2021	289470003.075898
2022	139219997.95176086