Year	current US$
1965	22700000
1966	13100000
1967	20000000
1968	41700000
1969	59600000
1970	62800000
1971	86000000
1972	83514293.4723569
1973	64015863.4453415
1974	131333924.294449
1975	289479789.762801
1976	436407081.369459
1977	503918473.356273
1978	493447411.354709
1979	613872790.518466
1980	953398487.377367
1981	1544123400.16345
1982	1534788223.25702
1983	1426356781.69414
1984	1302444378.04276
1985	1659714499.12127
1986	1489386883.66176
1987	1148513525.51462
1988	1251689978.60344
1989	1050028756.53797
1990	1234863497.46056
1991	1514616863.35093
1992	1398461506.73065
1993	1302177260.34121
1994	1169670093.41565
1995	1279928665.96901
1996	1318441888.7828
1997	1290271421.24692
1998	1079202721.71103
1999	1369037032.29933
2000	1564139197.72147
2001	1683978561.44655
2002	1725747320.10789
2003	1778386497.58307
2004	1940503184.74825
2005	1974973931.62393
2006	2800288505.16612
2007	4217125249.57618
2008	3920456598.60005
2009	3845174045.06264
2010	5088638737.03106
2011	4544544828.72022
2012	5204661306.9061
2013	5347043440.19013
2014	6048506002.51976
2015	3387207932.19981
2016	2440104314.00794
2017	2628648079.34137
2018	2142030870.00967
2019	3674200742.43906
2020	2239408657.45375
2021	4720180962.86458
2022	4503045554.78218
2023	4808192034.50774