Year	current US$
1960	471000000
1961	472000000
1962	528390000
1963	547200000
1964	586400000
1965	467750000
1966	493230000
1967	425690000
1968	450010000
1969	556620000
1970	616260000
1971	754658541.978892
1972	907123174.75829
1973	1275223716.90599
1974	1547074244.74273
1975	1456140830.38929
1976	2404130148.52637
1977	2783852971.30345
1978	3243313192.26701
1979	3914949362.02125
1980	4387359182.04393
1981	4098037852.13357
1982	3767777977.84825
1983	3783721248.25914
1984	3723276350.732
1985	4911839191.56415
1986	6027385429.28088
1987	7435328845.63549
1988	6526499091.65534
1989	7782965043.236
1990	9754081703.20525
1991	10885603985.1807
1992	17227521663.2062
1993	27249214748.1061
1994	25422898220.8837
1995	23774418341.4396
1996	27009401287.2574
1997	20788220334.0205
1998	25559370024.57
1999	30588151965.9178
2000	28329830063.5298
2001	29522298173.9213
2002	33360665887.9318
2003	43821705990.9861
2004	65881086884.2326
2005	69857980074.6077
2006	82132321883.1742
2007	101019281444.723
2008	91148849564.9209
2009	95431679214.866
2010	104883688469.784
2011	131780414231.728
2012	137783902665.941
2013	133444437251.858
2014	114571975075.857
2015	93978542267.7486
2016	93071810074.1533
2017	100877834680.702
2018	99850469255.3702
2019	101725971168.985
2020	105279990229.363
2021	114640742599.997
2022	112393374845.11
2023	110860346168.099