Year	constant 2015 US$
1960	21811730676.945885
1961	23092456330.03747
1962	25673202937.96214
1963	27877289176.474747
1964	29871137023.095676
1965	31948195858.47679
1966	34658381782.25064
1967	36902264580.60508
1968	36803778144.63287
1969	38194245826.3792
1970	39224534542.28433
1971	41147230963.733505
1972	42348765482.59439
1973	45423552212.19187
1974	49406424079.99835
1975	51664376369.20596
1976	52459101609.6837
1977	52787925710.19498
1978	48069420463.49408
1979	47113097070.93134
1980	51778540237.84313
1981	54740771040.615234
1982	54541386255.95314
1983	51223398327.322266
1984	51741557576.17194
1985	52884804204.35539
1986	60162750829.97473
1987	66399555132.45934
1988	60071098146.70263
1989	50011010201.23179
1990	49035793492.38051
1991	50743829681.955574
1992	50605546686.14154
1993	52757776801.22389
1994	57692550221.61069
1995	63104882360.09943
1996	64767896178.944336
1997	67459992757.335526
1998	66545475851.87936
1999	66064299264.70088
2000	67788816857.84681
2001	68284866906.78436
2002	71116854422.80139
2003	73045178640.59183
2004	75600600164.98079
2005	78964816420.70065
2006	84035862909.63675
2007	90744196148.4291
2008	98273785667.59373
2009	102560558537.82874
2010	111073404474.90361
2011	119102259926.62938
2012	128105528116.30054
2013	135793901889.37955
2014	141998547355.62836
2015	148583471060.36575
2016	154482205596.9213
2017	158718730285.5378
2018	164513350589.7799
2019	169940556190.0277
2020	158203384934.85876
2021	175830447046.61838
2022	180944103993.56693
2023	182144834541.5219