Year	constant 2015 US$
1970	57829883294.57712
1971	53737142402.11412
1972	52558551223.402885
1973	53230577300.95483
1974	58169460063.90758
1975	61885459051.835526
1976	60706867754.568405
1977	51969001035.28927
1978	45158118158.52287
1979	52338615360.15946
1980	56964904198.449135
1981	49827424524.60822
1982	49683168927.6097
1983	50117278245.42039
1984	55357858224.750175
1985	62389546809.27099
1986	61892133866.584564
1987	66078229099.166016
1988	70176658539.99028
1989	78981231912.20073
1990	78972215855.88115
1991	68350253358.86109
1992	64308605428.1404
1993	51959605244.47758
1994	59397445654.23042
1995	64518585561.13837
1996	65107452630.25614
1997	66593787731.02715
1998	72637885184.35788
1999	75437463797.23233
2000	81732781165.89638
2001	82451229814.74957
2002	80619778539.5872
2003	83356878202.3056
2004	86819184199.18817
2005	91032541712.6524
2006	100090922482.33498
2007	111182062415.91801
2008	108676383836.13054
2009	88409729920.80768
2010	102572889885.59264
2011	110817028853.24161
2012	104778147858.74744
2013	106416590156.95717
2014	113807245325.4157
2015	123390235875.82027
2016	127365533176.92523
2017	134841074357.36046
2018	138036748174.16534
2019	136887467447.76555
2020	135142917634.58492
2021	146891331381.57422
2022	162017876448.7653
2023	152584859089.91174