Year	current US$
1970	20300013359.69647
1971	23869498689.566723
1972	28010412194.074707
1973	35630229052.323456
1974	37678455899.02502
1975	42069480085.85738
1976	44560505670.34332
1977	50772151099.132484
1978	64754084712.755615
1979	78892619784.44136
1980	85057605982.3542
1981	71548258762.4405
1982	68528312243.088585
1983	68658907698.19992
1984	64365379698.98975
1985	63104471166.622375
1986	87635133747.63577
1987	110492551686.61588
1988	116722623900.2116
1989	120756192655.77863
1990	155816516160.27115
1991	168301708898.0554
1992	193872260488.41577
1993	192226428486.9277
1994	214428106544.53418
1995	243058550566.39825
1996	233587210813.621
1997	205365441010.6023
1998	209580971434.92273
1999	216204475992.66455
2000	191447332773.33374
2001	188049958124.40967
2002	199511328209.8043
2003	243251517691.7642
2004	264759632479.53738
2005	272022826235.01932
2006	286430970419.9996
2007	344976732031.37366
2008	377891497874.2187
2009	352734895362.49976
2010	342984113133.334
2011	383429385924.12524
2012	359111281675.7813
2013	376477636222.354
2014	387971383548.6261
2015	337469440812.4998
2016	345682521430.7402
2017	364984172581.1771
2018	392920098774.9017
2019	384587631521.568
2020	362479361763.4251
2021	403400785779.0633
2022	386660505046.6941
2023	384228806764.71265
