Year	current US$
1960	363000000
1961	569520000
1962	598500000
1963	574000000
1964	897510000
1965	599010000
1966	421020000
1967	264020000
1968	364020000
1969	497130000
1970	1319490000
1971	2726861734.11526
1972	4473385864.23363
1973	6169571808.04701
1974	5874221460.78679
1975	5506117955.72817
1976	4704447828.0785
1977	5976597735.8469
1978	10112381224.5126
1979	13224431861.5845
1980	11863258450.3179
1981	10805063552.6341
1982	7654701102.48056
1983	7402088206.46505
1984	11955317264.9284
1985	11174874780.3163
1986	14754530904.0647
1987	30668818439.7566
1988	37073524929.0145
1989	41467033563.7501
1990	51227835967.6203
1991	65822356992.6619
1992	45503814979.3062
1993	41044658124.6966
1994	41545943439.9557
1995	34484976088.1069
1996	57926892717.045
1997	68398241257.124
1998	55258034758.4886
1999	33115036235.8127
2000	30988904294.835
2001	29582302330.3691
2002	34535673181.2951
2003	19788385919.0027
2004	12388839233.3238
2005	9677639742.35772
2006	10822203767.0765
2007	11480179768.3672
2008	12413672123.6605
2009	18205141380.3609
2010	19146439372.9595
2011	32843161356.6883
2012	35522619476.9985
2013	35429922037.6453
2014	39493928511.5441
2015	44377662235.8777
2016	52666093828.9472
2017	57662984366.0331
2018	59030411977.7056
2019	60943708284.14
2020	64167574160.7527
2021	75723903894.64
2022	76497865509.7299
2023	84417863327.7431