Year	constant 2021 US$
1960	7519230040.5800295
1961	6777679959.29718
1962	7685470038.890841
1963	10697270274.266602
1964	12489890385.9705
1965	12842550099.849699
1966	11585109603.3454
1967	12820630116.2988
1968	9031330208.89759
1969	8096009913.62333
1970	8128329901.69525
1971	8990749782.80067
1972	6916929918.88523
1973	7689699963.33122
1974	10101889952.4212
1975	13668469929.6951
1976	12794359873.7717
1977	9024370101.928709
1978	9245220048.90442
1979	9562879796.98181
1980	12093539966.5833
1981	10682619935.989399
1982	10932170067.787199
1983	10287989795.6848
1984	10288019680.023201
1985	9920459751.12915
1986	9959900075.43564
1987	8414480018.615721
1988	9071660057.06787
1989	9156519947.052
1990	7823819931.03027
1991	10147279895.7825
1992	8027410121.91772
1993	6277640014.64844
1994	7613169891.35742
1995	4977849956.51245
1996	5326469884.87244
1997	5330730110.16846
1998	5618050031.66199
1999	4914989997.8637705
2000	4827170019.14978
2001	7956689971.92383
2002	8887650051.11694
2003	6960529991.1498995
2004	7826189971.92383
2005	10241240002.4533
2006	9716539878.84521
2007	11247969955.4443
2008	11138159877.7771
2009	14293740203.8574
2010	15135799972.534199
2011	16115560009.0027
2012	13620130199.4324
2013	13536669956.2073
2014	15138530033.111599
2015	16755860157.0129
2016	14921130472.1832
2017	15831529922.485401
2018	12428959953.3081
2019	15372930244.4458
2020	16585300338.745098
2021	17038410507.2021