Year	current US$
1960	15509999.6682256
1961	19210000.3063679
1962	24130000.6844103
1963	14029999.775812
1964	22150000.2630055
1965	26750000.242143903
1966	32979999.598115698
1967	35730000.240728304
1968	35489999.8288602
1969	49739999.6053427
1970	61519999.7723103
1971	71549999.8815358
1972	82290000.0438094
1973	85870000.8057058
1974	68289999.9227375
1975	66710000.4181266
1976	61350000.6068498
1977	68509999.0945309
1978	76269998.9732355
1979	91720001.4442205
1980	144529997.21095
1981	80740000.7657707
1982	69960000.4311651
1983	50319999.4117022
1984	42629999.8387694
1985	65020002.132281706
1986	111889998.290688
1987	76489999.3669242
1988	129510000.951588
1989	112710000.17412
1990	129599999.392405
1991	91369999.9898672
1992	81610004.3710321
1993	176940005.203709
1994	167410002.427176
1995	131059999.00959401
1996	146820003.798231
1997	151360001.247376
1998	144940002.04279998
1999	146680000.130087
2000	168170002.87585
2001	134750002.21282202
2002	134699999.067932
2003	113479998.48797901
2004	202380000.41991502
2005	225380001.708865
2006	289029997.102916
2007	367579996.436834
2008	544949991.589412
2009	389460003.647953
2010	281239997.072145
2011	169420001.002029
2012	214169999.079779
2013	287090007.873252
2014	244330004.088581
2015	342340004.179627
2016	278639991.857111
2017	304510002.26289
2018	323430008.370429
2019	369830006.826669
2020	351549990.311265
2021	289470003.075898
2022	139249997.9510903