Year	current US$
1960	273520000
1961	207530000
1962	215530000
1963	254030000
1964	200040000
1965	176000000
1966	154000000
1967	111000000
1968	193000000
1969	278000000
1970	136210000
1971	129440041.272939
1972	220737202.128807
1973	412028469.789527
1974	392340075.449753
1975	340278171.933785
1976	466155371.77116
1977	448862251.633621
1978	407696188.071206
1979	213026412.568701
1980	495824324.705793
1981	721498358.889702
1982	968517412.678585
1983	1972535046.94921
1984	1035476999.5035
1985	807449912.126538
1986	709063740.780155
1987	501874817.347387
1988	394593909.380845
1989	520537571.950482
1990	295910500.633082
1991	526524067.001387
1992	850192500.721878
1993	1196800784.58759
1994	2929398396.79534
1995	1732811460.20383
1996	548285615.272234
1997	1194844446.21346
1998	1028001945.88962
1999	1511368704.80146
2000	1513347514.18215
2001	3640025804.43274
2002	8078289631.46045
2003	10940965436.3329
2004	9799027456.62103
2005	10032828334.068
2006	11543115498.1544
2007	14044024197.2965
2008	7194233937.18211
2009	11318242633.5603
2010	14345903939.5703
2011	14527990312.3776
2012	10241503776.3039
2013	5155988089.14108
2014	11807078697.9903
2015	17829731392.8997
2016	19650422286.138
2017	15764804401.542
2018	9174683598.58948
2019	13421197225.5616
2020	14591657230.391
2021	19028414245.2705
2022	6159296211.7142
2023	9442627601.76659