Year	constant 2015 US$
1960	1139.240864345366
1961	1124.4208837861818
1962	1163.1715863070538
1963	1205.924856833374
1964	1234.5835894830518
1965	1259.7721563043665
1966	1253.0264817172808
1967	1212.025620556034
1968	1217.914008419238
1969	1293.290383812648
1970	1358.2694909340598
1971	1425.2046682549392
1972	1429.0276343812848
1973	1451.0050986246868
1974	1518.0081440650092
1975	1471.9866753332144
1976	1505.2848647098724
1977	1504.6326786268285
1978	1459.4336158429803
1979	1472.5913635267439
1980	1484.6313160061281
1981	1430.330309939182
1982	1371.5318746921384
1983	1298.5703576655537
1984	1291.4821545534073
1985	1280.7358160427655
1986	1268.3567924723357
1987	1268.7184327868522
1988	1288.5202849078871
1989	1282.2572595082022
1990	1276.5913295253793
1991	1247.051173427905
1992	1209.7348490937081
1993	1167.8262811427737
1994	1149.1225480358592
1995	1156.5703190674697
1996	1184.0513865051219
1997	1200.879649498949
1998	1199.7637816274403
1999	1194.925382878468
2000	1204.5630171387813
2001	1222.4456137717543
2002	1265.8034038444544
2003	1282.471357107352
2004	1330.9509254218517
2005	1373.4694584385657
2006	1417.5883626172713
2007	1464.238130892452
2008	1498.374966376588
2009	1504.0455321381148
2010	1550.8928553651672
2011	1575.5091744252238
2012	1582.997842630446
2013	1618.6968355575757
2014	1651.8630989324415
2015	1654.272807064834
2016	1630.4382992226017
2017	1627.391265441267
2018	1628.569629833344
2019	1628.4390662273634
2020	1555.1534686477107
2021	1580.4872211011907
2022	1597.725296468424
2023	1604.2659682503195