Year	constant 2015 US$
1960	304.8016592741469
1961	308.6330742328653
1962	310.2560072328752
1963	321.42850895683193
1964	337.2146002755606
1965	320.89915008200296
1966	313.942223021143
1967	331.0955964817338
1968	335.1509695121696
1969	349.2753597038973
1970	359.29750470978246
1971	357.2711125343695
1972	347.633088291607
1973	351.3315694015325
1974	347.9504022961523
1975	371.6810715871098
1976	369.71428685428515
1977	388.11175660676116
1978	401.38770942677735
1979	372.5751813753023
1980	388.9260233508426
1981	402.5308383144619
1982	406.0797600561407
1983	425.8910186761624
1984	431.66459322010405
1985	444.3684531198218
1986	455.14924566287624
1987	462.0975814936409
1988	494.5583502273425
1989	512.6664683979993
1990	528.6328478340494
1991	522.8982050820948
1992	540.5098052285744
1993	555.5316535665856
1994	580.9499105751244
1995	612.6297226270801
1996	646.7951647927615
1997	661.373584658561
1998	689.1415821466478
1999	736.2412488192822
2000	748.7292007547918
2001	771.8083831882292
2002	787.9676622960895
2003	835.3086423965213
2004	886.5232464416974
2005	941.3374515986225
2006	1001.2048730082599
2007	1066.0214548171798
2008	1081.5545196068028
2009	1150.4215988109613
2010	1225.0077984450274
2011	1274.3226388821408
2012	1322.1007338138427
2013	1387.385746321881
2014	1472.7762134358927
2015	1571.7253840654523
2016	1681.6529525720498
2017	1776.4562097337464
2018	1871.0381871262193
2019	1925.870750560521
2020	1788.4232187595999
2021	1949.6125771856684
2022	2067.4036005512785
2023	2206.7016319146296