Year	constant 2010 US$
1970	150898695103.83
1971	158456839006.336
1972	168965685504.931
1973	179019155010.283
1974	184406166855.446
1975	182926147159.857
1976	194569699079.291
1977	208215273124.714
1978	201145676028.63
1979	215984971054.009
1980	219129055778.691
1981	218038537660.757
1982	218051252400.422
1983	224171128028.784
1984	224087124950.778
1985	230292902616.93
1986	234025242118.802
1987	239110180028.633
1988	248966912770.686
1989	258976862085.732
1990	269829102840.943
1991	279161408528.744
1992	285538446859.125
1993	285780633499.163
1994	294879857170.408
1995	302546384023.869
1996	308656046750.363
1997	312391201846.186
1998	321480991774.471
1999	330615057212.33
2000	338486760723.937
2001	339873525839.366
2002	338332650694.206
2003	346186236079.251
2004	353118935895.607
2005	360456644710.69
2006	368958575599.815
2007	379134751176.846
2008	383259075154.9
2009	376659905149.367
2010	378577446609.892
2011	389255658521.318
2012	389732941362.625
2013	389463990488.289
2014	391453898501.104
2015	396061942023.322
2016	404668687863.916
2017	414795541874.196
2018	421898999735.699