Year	constant 2010 US$
1975	1225476863.22429
1976	1267663026.27932
1977	1361636832.53324
1978	1560569452.50792
1979	1795104495.72636
1980	1957226412.83974
1981	2059350852.54299
1982	2001700713.23694
1983	1883433144.70661
1984	2120605877.82268
1985	2293374538.49293
1986	2420927105.54514
1987	2446974841.52993
1988	3112824452.1692
1989	4376419545.51404
1990	4952088410.22225
1991	4978994667.93716
1992	4951942903.86181
1993	5075595965.29326
1994	5132912159.91835
1995	5692691260.21409
1996	5845295490.43436
1997	6388072182.8155
1998	7674787451.29337
1999	7073359767.86937
2000	7739045698.55734
2001	7506114885.82847
2002	7823121868.34479
2003	7985633860.98172
2004	8481329262.00005
2005	8688185015.87901
2006	9226830366.31943
2007	10513866790.7416
2008	11937569694.7714
2009	12395433405.2986
2010	14105573937.235
2011	14735533469.9112
2012	15510778861.4992
2013	16017501886.5591
2014	16502637755.058
2015	18074791190.0317
2016	18002098401.1831
2017	17960276483.3153
2018	18695789899.6036