Year	constant 2015 US$
1960	2171996745.1347117
1961	2018999625.0515745
1962	2263982814.644308
1963	1989902031.9370644
1964	2021815494.0302415
1965	1655748637.148361
1966	1806435964.702019
1967	2020417627.7642345
1968	2095021143.794452
1969	2338781514.889178
1970	2601260403.5145707
1971	2995563910.177927
1972	3932688348.7285867
1973	4410765742.727157
1974	4164173621.4037533
1975	4300244648.877446
1976	5517379618.636482
1977	5469133749.96786
1978	5494226576.04225
1979	6844437396.66663
1980	5608465876.189622
1981	6077482416.950388
1982	5311441623.910569
1983	5646551635.680331
1984	5933307730.572779
1985	5935320265.823482
1986	5530486441.448341
1987	6252709980.554796
1988	5630453151.723453
1989	5535614228.361313
1990	5485525370.551588
1991	5847570049.195407
1992	6435585210.489105
1993	7000429551.058932
1994	7447941350.160032
1995	8074459784.966564
1996	8622234408.563044
1997	9625928046.823647
1998	9915358400.9178
1999	10444591805.46375
2000	11261183788.708288
2001	10441909963.254107
2002	10515193137.526957
2003	12017901224.825783
2004	12528014277.977901
2005	12091098210.157688
2006	11930742180.979736
2007	12058102532.930485
2008	11501274622.73016
2009	10526735492.036308
2010	12217810541.636768
2011	13109412715.696518
2012	13836608928.809237
2013	15088601240.23693
2014	16406571411.485228
2015	16909888897.001675
2016	18176927005.29051
2017	19059287196.490948
2018	20213306739.4638
2019	20523893898.884815
2020	14301317454.474018
2021	19473730806.33412
2022	22140726305.130627
2023	22030258398.612923