Year	constant 2015 US$
1960	1212.9469917366234
1961	1272.7508299656618
1962	1380.113659976209
1963	1471.9520536126756
1964	1557.106791556992
1965	1658.7439982904225
1966	1653.8803278376038
1967	1776.8986783197865
1968	1713.22823818317
1969	1684.8589364197683
1970	1645.600377427971
1971	1625.6242343377066
1972	1601.3189603668154
1973	1652.5639011400283
1974	1719.6434523148148
1975	1752.747045836883
1976	1778.0822743863216
1977	1858.722615343531
1978	1697.1111640088643
1979	1203.9223681250294
1980	1379.9512085677575
1981	1151.8665574908046
1982	976.6602867988249
1983	897.9678903331048
1984	831.6421934386972
1985	746.6524722730825
1986	669.3044511104043
1987	635.6282415456385
1988	892.0230744818434
1989	822.115234974949
1990	680.7492911291938
1991	894.6462606212968
1992	932.5655066199422
1993	885.2086539983169
1994	886.5045433907397
1995	899.8723476910025
1996	922.4161763850686
1997	959.3838232179526
1998	994.3611179285068
1999	1012.9434260129046
2000	1056.2685345202954
2001	1092.559341882887
2002	1125.9268416553143
2003	1130.8348748775222
2004	1139.1545524673547
2005	1163.0570065093095
2006	1179.9763218700375
2007	1219.0849877928397
2008	1240.5571697426149
2009	1243.4367817904886
2010	1262.4088083069194
2011	1276.5476935296192
2012	1309.1739146431976
2013	1339.600906269797
2014	1376.2378285938466
2015	1427.8106596526163
2016	1487.7374710551076
2017	1506.372080036318
2018	1417.6325214274352
2019	1373.0718907452324
2020	1349.9842949914603
2021	1449.3634087187452
2022	1513.996922626557
2023	1598.3424316934543