Year	constant 2010 US$
1971	398082994.129637
1972	417637925.413072
1973	391098899.088128
1974	470715807.351687
1975	413447589.293019
1976	343608334.031489
1977	428812042.118842
1978	393892484.953376
1979	351989177.920843
1980	347798812.489101
1981	326847073.734445
1982	532173817.739967
1983	472112299.194649
1984	442780287.776821
1985	495857739.419851
1986	474906000.899688
1987	511222364.129415
1988	558712958.497742
1989	566332423.309825
1990	615702681.750167
1991	642172603.542173
1992	767717833.049722
1993	719318192.946139
1994	777305866.863967
1995	809879248.726509
1996	913618323.227409
1997	952265030.86893
1998	959021656.891248
1999	997066390.389441
2000	1074918234.60611
2001	1083594494.35315
2002	1097429611.24708
2003	1091098286.56681
2004	1092505247.60687
2005	1143390338.55572
2006	1160742858.0498
2007	1109154286.58092
2008	980886338.428747
2009	970568624.134971
2010	963299325.427993
2011	944070857.880501
2012	945712312.427238
2013	1010901507.28337
2014	1118534026.84799
2015	1209752000.94523
2016	1265740843.0669
2017	1356557022.15469
2018	1448506545.41022