Year	constant 2015 US$
1960	1108.16243398129
1961	1105.53262069626
1962	1122.437428418006
1963	1176.8613923306896
1964	1213.6491160168114
1965	1235.7269547591072
1966	1189.6871305373647
1967	1057.3459542992236
1968	1049.7801953392848
1969	1182.5621951662613
1970	1358.1326686516834
1971	1466.6936639016774
1972	1477.290770427025
1973	1499.0936346251688
1974	1608.0653584242668
1975	1532.2489358764803
1976	1618.409954518355
1977	1647.569251112291
1978	1571.2166547346737
1979	1605.5530326886296
1980	1591.090108435373
1981	1441.884868352142
1982	1355.0859744441498
1983	1235.2527377967372
1984	1209.8822857214595
1985	1241.6181509458856
1986	1225.281573124898
1987	1209.6661405716889
1988	1233.149325948543
1989	1220.5289268898305
1990	1257.6114497698168
1991	1237.7721186889585
1992	1234.7989916147956
1993	1186.824773957595
1994	1152.6635439654112
1995	1143.9745307754995
1996	1165.8353407752077
1997	1185.7940112225438
1998	1196.037580931616
1999	1182.5143668368214
2000	1195.2908720152366
2001	1223.3063593763409
2002	1307.9760783800987
2003	1342.5337541155666
2004	1409.9558248054932
2005	1450.9176687186693
2006	1486.7837255958634
2007	1525.7404247939612
2008	1576.9068319342075
2009	1629.6226591511675
2010	1694.9692410636067
2011	1727.9372757738665
2012	1766.972033963731
2013	1824.484797607881
2014	1880.8587974382901
2015	1882.5188080776825
2016	1835.3872285156324
2017	1827.8584057352869
2018	1830.9456228083948
2019	1841.4361158224247
2020	1776.474134067841
2021	1801.092774682545
2022	1822.955460171585
2023	1837.2117175869585