Year	constant 2010 US$
1971	500.626766912996
1972	503.215650527073
1973	516.950811214204
1974	506.284459263152
1975	511.294228410737
1976	535.986970491262
1977	558.783745927137
1978	572.768666865863
1979	553.531210900454
1980	597.102684723992
1981	622.267655968636
1982	613.411147281453
1983	890.515337495738
1984	1035.68911735984
1985	1269.50223307863
1986	1218.62983945005
1987	1091.91358260157
1988	734.345227309624
1989	771.247098284606
1990	939.089288098864
1991	857.058369404166
1992	906.25856870078
1993	1039.33123842472
1994	1190.10419858709
1995	1232.47627416912
1996	1001.94817141873
1997	971.375744016531
1998	713.933897961225
1999	662.110950068098
2000	584.446365032372
2001	573.195624615199
2002	843.039353264986
2003	636.079635692247
2004	856.981172024795
2005	843.551775997449
2006	932.691042466499
2007	1215.305480773
2008	1215.168322182
2009	1312.31750607536
2010	1383.73695514389
2011	1412.74684764205
2012	1483.65204463404
2013	1539.19163755382
2014	1602.45870099064
2015	1681.04053726935
2016	1757.86681070736
2017	1802.6004816782