Year	current US$
1960	22023272.398089226
1961	26094745.732430626
1962	28977962.96422442
1963	28161380.543945823
1964	31425087.92004074
1965	32236880.318100803
1966	33376958.515899383
1967	35772229.453856796
1968	31102984.33750008
1969	30773897.275669195
1970	34008298.900022976
1971	37769217.810643174
1972	42455668.16371286
1973	56530336.42283125
1974	43621928.428907745
1975	52260036.610022075
1976	53986076.71428376
1977	58612903.14978299
1978	66472906.13237343
1979	68634286.22242126
1980	55850168.2758656
1981	60721708.207993135
1982	49907756.320145264
1983	77939253.28994684
1984	78497494.7607276
1985	133049026.79012959
1986	143419443.40631282
1987	151698680.841368
1988	132933479.11541483
1989	145058922.11913896
1990	183086473.89246675
1991	174210550.7951243
1992	175113093.13279408
1993	135275643.18447602
1994	99638926.68515901
1995	157482215.52039915
1996	73317020.50560096
1997	94526118.11880375
1998	106530741.43221283
1999	129551919.11113723
2000	101508293.81630558
2001	95510950.76974799
2002	95871027.69773194
2003	73162938.99190372
2004	86674954.63327402
2005	131980836.87863666
2006	149609812.8800631
2007	181662922.46046904
2008	253730771.06959277
2009	272980640.8540823
2010	360893433.3195642
2011	334209993.00696105
2012	271946482.0354458
2013	127125020.85241514
2014	416684446.9934249
2015	369781248.81419384
2016	409962365.9488951
2017	530547522.26681256
2018	577454577.9892254
2019	577538351.3741872
2020	604947434.0502771
2021	638288180.360807
2022	579611529.600884
2023	606872030.6268486