Year	constant 2010 US$
1970	255164298848.79
1971	265852317898.855
1972	288875412716.424
1973	315269149913.824
1974	333093864946.94
1975	343974693249.029
1976	356116990191.497
1977	358418289462.675
1978	385554158560.301
1979	411889272879.283
1980	475310756651.635
1981	522725869542.348
1982	485696313415.389
1983	428815844760.921
1984	452301014602.262
1985	473406753038.028
1986	418552042854.506
1987	441074371474.125
1988	425151635126.811
1989	454649222092.527
1990	490165044959.393
1991	524784215368.589
1992	548162668688.158
1993	576742430077.488
1994	608683661142.958
1995	547093038130.157
1996	578349692266.888
1997	638445352226.185
1998	672536554978.96
1999	703700481584.431
2000	738627182155.074
2001	738998842290.1
2002	735164051843.333
2003	720637407958.867
2004	778409278272.248
2005	789208226170.35
2006	813118823526.747
2007	833484026833.336
2008	831453992284.07
2009	791159041439.26
2010	840056965763.753
2011	847566588052.521
2012	868180955905.977
2013	867539574410.118
2014	909068300736.757
2015	937645675143.575
2016	959940651954.707
2017	979918016230.566