Year	constant 2010 US$
1971	1304.26861121328
1972	1346.1128734184
1973	1410.66267861123
1974	1305.37376464439
1975	1293.26766137712
1976	1469.87356681238
1977	1657.14926397011
1978	1621.42613985633
1979	1578.1620702892
1980	1536.42567464555
1981	1360.56093452678
1982	1213.22208884404
1983	1202.83118450829
1984	1310.33100374755
1985	1352.06017253858
1986	1408.59192617566
1987	1453.27026520868
1988	1468.99706307637
1989	1420.26498481664
1990	1369.50366637141
1991	1335.52793599823
1992	1347.1940213078
1993	1474.38107958882
1994	1485.57717667873
1995	1524.47491846616
1996	1472.17886638225
1997	1501.70227610473
1998	1541.67714091039
1999	1516.10749315281
2000	1573.39856042631
2001	1559.07220670598
2002	1550.40543995458
2003	1548.89274000023
2004	1563.7283077367
2005	1604.90621641991
2006	1640.80376202219
2007	1720.38129700091
2008	1686.44963652912
2009	1654.24546672403
2010	1670.71286799634
2011	1715.56079821274
2012	1710.76465600171
2013	1661.92477572565
2014	1697.94034558806
2015	1846.33563976456
2016	1881.3937922323
2017	1928.7069013357