Year	constant 2015 US$
1960	1139.240864345366
1961	1124.420883786181
1962	1163.1715863070526
1963	1205.9248568333726
1964	1234.5835894830507
1965	1259.7721563043651
1966	1253.02648171728
1967	1212.0256205560331
1968	1217.9140084192368
1969	1293.2903838126474
1970	1358.2694909340591
1971	1425.2046682549378
1972	1429.0276343812839
1973	1451.0050986246868
1974	1518.0081440650083
1975	1471.986675333214
1976	1505.2848647098715
1977	1504.6326786268273
1978	1459.4336158429792
1979	1472.5913635267425
1980	1484.631316006127
1981	1430.3303099391808
1982	1371.5318746921373
1983	1298.5703576655528
1984	1291.4821545534069
1985	1280.735816042765
1986	1268.3567924723347
1987	1268.7184327868515
1988	1288.5202849078862
1989	1282.257259508201
1990	1276.5913295253781
1991	1247.0511734279046
1992	1209.7348490937072
1993	1167.8262811427728
1994	1149.1225480358582
1995	1156.5703190674687
1996	1184.0513865051216
1997	1200.879649498948
1998	1199.7637816274396
1999	1194.9253828784679
2000	1204.5630171387804
2001	1222.4456137717539
2002	1265.8034038444541
2003	1282.4713571073519
2004	1330.9509254218508
2005	1373.4694584385652
2006	1417.5883626172708
2007	1464.2381308924512
2008	1498.3749663765882
2009	1504.045532138114
2010	1550.8928553651676
2011	1575.509174425223
2012	1582.9978426304456
2013	1618.696835557576
2014	1651.8630989324408
2015	1654.272807064834
2016	1630.4382992226012
2017	1627.3912654412666
2018	1628.5696298333437
2019	1628.4390662273627
2020	1555.1534686477103
2021	1580.4872211011902
2022	1597.7252964684235
2023	1604.265968250319