Year	constant 2010 US$
1974	328416152.789845
1975	267424496.801463
1976	263187282.908733
1977	282708785.240942
1978	370278141.423968
1979	482514212.741799
1980	569957464.131232
1981	579919984.985086
1982	530939664.281537
1983	485414683.534442
1984	571092427.453571
1985	615608529.491925
1986	632330440.830366
1987	841518295.026549
1988	1179765031.85787
1989	1459649001.11033
1990	1565932760.69457
1991	1530874760.3357
1992	1466105711.8383
1993	1438714818.35394
1994	1421821962.27129
1995	1510452503.71211
1996	1512732843.2346
1997	1786454305.91749
1998	1971585587.1511
1999	2217559555.64429
2000	2261128166.52105
2001	2377284222.19804
2002	2476226741.47953
2003	2610526005.77734
2004	2868599334.69694
2005	2922027467.72912
2006	3125183057.04845
2007	3479800351.31179
2008	3595833470.45452
2009	3937094594.15464
2010	4298385009.42063
2011	4820727955.14231
2012	5477062178.0663
2013	5587641855.15098
2014	5669845693.51754
2015	6166279179.42465
2016	6390949489.61882
2017	5826751799.88149
2018	6222118277.09198