Year	constant 2015 US$
1965	1453700582.0219285
1966	1482089766.1199253
1967	1567537425.0520093
1968	1595646502.5119133
1969	1654385853.6013258
1970	1762868732.9245648
1971	1818899992.4333096
1972	1856565342.4517531
1973	1903880649.2127686
1974	2069951225.1841521
1975	2182169411.4134016
1976	1988176653.4966462
1977	2058807287.4938483
1978	2340956032.453592
1979	2368722547.0837345
1980	2241718327.381732
1981	2006106789.0336258
1982	1848409839.6139152
1983	1891211502.6858375
1984	1948456872.9309876
1985	1909421744.86091
1986	1828238614.5454242
1987	1852487709.246218
1988	1833654797.7067602
1989	1823382408.0265694
1990	1942529921.0388932
1991	1880766033.2987702
1992	1981990627.4295716
1993	1904081954.75768
1994	1788764669.8078284
1995	1792888945.9274695
1996	1742338212.9436338
1997	1679117695.4427376
1998	1599044864.2330031
1999	1648440054.9262176
2000	1531235908.478178
2001	1431363447.8228276
2002	1378101411.9930544
2003	1337180956.8707206
2004	1325531997.9481502
2005	1341339895.1203184
2006	1378370845.3853157
2007	1475748253.4980416
2008	1473005185.6553972
2009	1394828942.0340478
2010	1464776085.596509
2011	1404429524.279736
2012	1464776085.5965092
2013	1359169577.4248953
2014	1371513227.5132277
2015	1296080000
2016	1404292393.6507936
2017	1413618683.5978835
2018	1375079161.9047618
2019	1389342899.4708993
2020	1328584863.4920635
2021	1370964622.222222
2022	1353957858.2010581
2023	1359992516.4021163