Year	constant 2015 US$
1960	1138.8944467348024
1961	1124.1181484495628
1962	1162.8449802785087
1963	1205.5627758776225
1964	1234.206765976982
1965	1259.4265428614513
1966	1252.6048966729218
1967	1211.608411757406
1968	1217.46314717913
1969	1292.877770698289
1970	1357.827953916133
1971	1424.6783358281016
1972	1428.4706557863321
1973	1450.3945862200212
1974	1517.4257373636246
1975	1471.3888265015587
1976	1504.5684740591635
1977	1504.0089079999027
1978	1458.619026467565
1979	1471.6310330540803
1980	1483.7704318835142
1981	1429.5307960598243
1982	1370.7689892906603
1983	1297.8230481586857
1984	1290.715383107994
1985	1279.8927567559294
1986	1267.529451266954
1987	1267.874123516117
1988	1287.6493997409605
1989	1281.303529343114
1990	1275.5807530615646
1991	1246.033488542822
1992	1208.6553999918237
1993	1166.6832983331944
1994	1148.0416214900242
1995	1155.5150754249003
1996	1182.911480579905
1997	1199.6181573822967
1998	1198.5030416254467
1999	1193.673436540629
2000	1203.287753416867
2001	1221.2383161248674
2002	1264.6221163130556
2003	1281.3994188240833
2004	1329.9476851003067
2005	1372.3968181966702
2006	1416.439842719062
2007	1463.013469742918
2008	1497.2286949494583
2009	1502.9629928017769
2010	1549.7945764838746
2011	1574.3227663721932
2012	1581.8050623773668
2013	1617.525941750735
2014	1650.6767952701657
2015	1653.0058468977504
2016	1629.0372139828391
2017	1625.9232274692554
2018	1627.0637193306256
2019	1626.8849023109449
2020	1553.8283405412394
2021	1579.1909231898833
2022	1596.2809980911195
2023	1602.8084697006868