Year	constant 2015 US$
1970	88202903817.31004
1971	98081510005.47118
1972	111320081434.93173
1973	136482206532.85986
1974	222931095092.86026
1975	320132636205.0469
1976	313618061939.06067
1977	361164640835.3447
1978	273442527274.88705
1979	225639441690.71228
1980	229913101368.20377
1981	231695869125.69553
1982	211394594193.90582
1983	264362054655.41464
1984	213790708667.77243
1985	209909626321.36002
1986	182682839221.77765
1987	183767574728.5133
1988	169962477519.3546
1989	195384134091.60553
1990	231386205212.82355
1991	280680319993.35657
1992	272044485882.41486
1993	244162959627.3541
1994	189960703651.92737
1995	198819718926.58575
1996	211659396993.0917
1997	208226698353.73804
1998	217963011825.5473
1999	214400824827.27676
2000	232644488649.82104
2001	260968980652.0797
2002	291443694789.71173
2003	324261730691.1182
2004	359441950707.7894
2005	376295340433.50244
2006	395683330567.2461
2007	441971964044.46185
2008	502636125113.77423
2009	484462126974.9391
2010	512989258542.1929
2011	481787581658.4795
2012	481735845451.449
2013	465521690756.40314
2014	464019813520.1308
2015	421690606260.43933
2016	413865700702.50433
2017	468230488957.5025
2018	465723863667.40753
2019	453144613639.1472
2020	355034725222.5358
2021	385990081704.0815
2022	421955000062.5979
2023	442243616546.1568