Year	constant 2015 US$
1970	1415275369282.496
1971	1491088009287.3572
1972	1628079207587.0964
1973	1812338257318.6506
1974	1864876550443.933
1975	1736341225648.784
1976	1930327149870.3477
1977	2009816602328.7473
1978	2118143370422.2
1979	2294785089935.5396
1980	2297480879554.8506
1981	2317757966796.0107
1982	2286067946821.669
1983	2334918680956.528
1984	2583400411169.227
1985	2702021177977.303
1986	2875315371821.4316
1987	3066684867010.5854
1988	3330225688771.2915
1989	3625852605510.099
1990	3850893192956.448
1991	3938619791920.354
1992	4126352837678.8413
1993	4173758145181.7563
1994	4563597444020.22
1995	4938222785752.035
1996	5300680872078.074
1997	5851090715726.609
1998	6286300707568.145
1999	6789853293164.332
2000	7619604781316.705
2001	7650402104994.364
2002	7833457023592.964
2003	8157974120503.331
2004	8877635522469.973
2005	9489318687864.654
2006	10241780899725.357
2007	10803287743027.064
2008	10872112004144.86
2009	9627799118435.293
2010	10721198736394.764
2011	11335742138350.08
2012	11492316628856.883
2013	11752563251792.244
2014	12259987161113.916
2015	12897431603495.21
2016	13287152939185.295
2017	13948824944143.883
2018	14470529747513.637
2019	14829505876250.85
2020	13584479275494.71
2021	14943720871638.87
2022	16178179668472.021
2023	16161833956210.709