Year	constant 2015 US$
1970	4415386339.958759
1971	4794884644.360015
1972	5026144885.097163
1973	5197853907.083783
1974	5246974578.442091
1975	5749592911.599549
1976	6062718437.116886
1977	6586033063.400976
1978	7014258437.902362
1979	7080180181.125704
1980	6788047966.237544
1981	8094903126.980844
1982	8771434085.788164
1983	9230248996.428312
1984	9918218534.010258
1985	10614227240.010603
1986	10014310659.747467
1987	9648231833.260206
1988	10165883666.82063
1989	10050301369.325256
1990	9543138455.208046
1991	8637196363.965471
1992	7211545854.651458
1993	6382932809.416733
1994	6870352120.507485
1995	7311703133.3277855
1996	7887968795.980127
1997	8375185430.720973
1998	7694488614.974603
1999	8247881602.398606
2000	8672347908.164688
2001	8620236284.389668
2002	8633219111.0741
2003	8462098242.691768
2004	8671987274.090118
2005	9495959518.29594
2006	9938534143.971577
2007	10897279831.209576
2008	11466180083.839985
2009	11570944282.501877
2010	11697166208.60054
2011	12158777824.047085
2012	12425647039.227118
2013	12681697232.170124
2014	12223691957.469255
2015	12990400000
2016	12315473329.44671
2017	12182646824.419579
2018	12071143743.927153
2019	11334728963.660088
2020	9683926487.326838
2021	8156460864.495711
2022	7604330096.332695