Year	constant 2010 US$
1971	15434812226.8104
1972	14898549998.3256
1973	14084472832.1917
1974	14706736608.4109
1975	15353100683.3475
1976	16391910093.6096
1977	16526609719.7399
1978	17729452670.5124
1979	19221629748.6981
1980	19541317861.8861
1981	20708954516.5751
1982	18345500958.5012
1983	14644216633.8614
1984	14170657059.4192
1985	14049412462.4562
1986	16254865641.3613
1987	18133344998.3078
1988	18506853302.6276
1989	18814598149.2
1990	18162987328.5193
1991	19426855069.3275
1992	21507153508.4712
1993	22637868152.5504
1994	24599318246.2896
1995	24178801283.8669
1996	25648349607.6453
1997	26597910122.4198
1998	28048906887.9764
1999	27320335123.7993
2000	26506098008.8053
2001	25646361255.1417
2002	24049648986.685
2003	22872404919.9781
2004	23809424485.7993
2005	25410663447.1258
2006	26425303148.3169
2007	28339225450.3752
2008	30166926939.7389
2009	31766725241.181
2010	34453656292.2913
2011	36869604444.7682
2012	38569349825.3956
2013	40618642906.3502
2014	41751093455.0961
2015	41785245008.3962
2016	42386654936.0098
2017	43176112637.5602