Year	constant 2010 US$
1970	110982470618.687
1971	117328467485.99
1972	123807609670.978
1973	129629765276.966
1974	134476662392.635
1975	139119602777.523
1976	145329649858.353
1977	153749189494.035
1978	152034678594.269
1979	158849139357.751
1980	162651147294.411
1981	164967063446.677
1982	168668626105.475
1983	176340938839.616
1984	173764195302.86
1985	176739474051.601
1986	180393972625.134
1987	183684685176.025
1988	187798416407.278
1989	193619591541.84
1990	200790893443.442
1991	206809276703.968
1992	213778682149.474
1993	216021689265.192
1994	220950627059.15
1995	223867426110.91
1996	229376303415.55
1997	231711316708.936
1998	238510408586.143
1999	244808377981.83
2000	250530461135.441
2001	252667300797.434
2002	254465948674.519
2003	258421249603.463
2004	263893148977.284
2005	269834874682.723
2006	276319972009.837
2007	279585817299.58
2008	284248109247.526
2009	287903229373.457
2010	289978933602.549
2011	292855464323.37
2012	294009806190.968
2013	294444124702.913
2014	295765648669.626
2015	297305702671.623
2016	301763410773.81
2017	306130303091.03
2018	309927573693.851