Year	current US$
1960	286170000
1961	295870000
1962	243070000
1963	277170000
1964	298480000
1965	205580000
1966	143690000
1967	139000000
1968	292960000
1969	281860000
1970	424580000
1971	623132343.65152
1972	667646121.429289
1973	574282671.04009
1974	595855017.583446
1975	433174187.068289
1976	462113602.7991
1977	531099280.951848
1978	1222893499.23199
1979	1539989014.99768
1980	1870184503.99521
1981	1483688176.82181
1982	1517500811.00515
1983	1237729199.77745
1984	2754270553.79279
1985	3749916520.2109
1986	1787135667.19264
1987	6417520762.10472
1988	6369202832.68964
1989	5111155526.05987
1990	9644062659.51544
1991	7608722367.64937
1992	5213449146.8093
1993	5410778796.89712
1994	10661974712.2275
1995	10038336451.2849
1996	6916261114.81784
1997	8416628558.51431
1998	9694481013.49591
1999	8219728947.40314
2000	7976924083.14767
2001	7983348162.79125
2002	9284954097.61376
2003	10514943632.4705
2004	12221530496.8033
2005	10521093301.0062
2006	6494233358.46346
2007	7063149053.47307
2008	6979372867.1211
2009	9710584791.92702
2010	7326737724.74528
2011	7857077418.071
2012	8453224912.0095
2013	9369246806.16031
2014	8773770780.11775
2015	8341475637.31246
2016	8654839380.00171
2017	8458376391.93142
2018	8284157187.47175
2019	9020281292.58792
2020	10492037777.3892
2021	13875628703.3566
2022	13180100339.0545
2023	13678494896.6914