Year	constant 2015 US$
1960	763.706521253421
1961	569.8134596616876
1962	448.89774697542884
1963	782.2255881383103
1964	841.1144856549491
1965	871.8639022072742
1966	690.4898441021166
1967	678.4700653464819
1968	716.0519876327797
1969	754.6822843447912
1970	818.0277372078218
1971	846.1686590085757
1972	971.2789410408102
1973	962.3304655800264
1974	1173.7695482491583
1975	1258.5563389969743
1976	1296.0257635119785
1977	1384.1202474242652
1978	1344.9928850977753
1979	1431.475236567894
1980	1531.7623802894166
1981	1614.0021319683194
1982	1591.8456956079608
1983	1637.8195048584469
1984	1665.9515994697879
1985	1711.7312935867167
1986	1640.9494654557598
1987	1501.2623595079262
1988	1332.4668909592274
1989	1442.7621949451816
1990	1357.6385713725224
1991	1227.9661595336834
1992	1257.5709467816441
1993	1198.6429200254488
1994	1167.0069478366725
1995	1168.5942877337056
1996	1120.5828264585534
1997	1078.1226382618631
1998	1084.2246697590433
1999	1100.73110466538
2000	1138.183892046371
2001	1149.5736489053843
2002	1182.940916600607
2003	1220.7123924689424
2004	1274.669527691504
2005	1315.240445315867
2006	1341.7967188607824
2007	1398.0180159385745
2008	1459.5376926960898
2009	1532.4753892246126
2010	1588.4925660234708
2011	1642.786691819886
2012	1725.56713830318
2013	1795.1713441402615
2014	1855.032907409981
2015	1889.2155449985628
2016	1901.9302688058856
2017	1907.9679280300472
2018	1920.668410919934
2019	1934.688930322793
2020	1810.1898740472484
2021	1808.9165225441222
2022	1841.9892354841104
2023	1780.7418972916853