Year	constant 2015 US$
1960	14276.870062339622
1961	14131.960177775441
1962	14885.523901373932
1963	15218.458193608763
1964	16258.802370913692
1965	17423.25487249343
1966	17668.725950989676
1967	18392.04367793467
1968	19369.888243145022
1969	20377.923805964325
1970	21362.847659437604
1971	22021.647636721256
1972	22570.48065286299
1973	23603.18148352623
1974	24224.243820806903
1975	24009.758006651176
1976	24883.603832887107
1977	25359.536587264232
1978	25883.549095862727
1979	26223.246165217024
1980	26365.671964746354
1981	25980.218223968008
1982	25540.47962497697
1983	25970.483877727438
1984	26659.585735102544
1985	27220.219444484857
1986	27823.99966738339
1987	28181.95964694918
1988	28964.02126743804
1989	30063.370768457025
1990	31106.05196012961
1991	31614.652892688893
1992	31911.835371911555
1993	32088.706599543133
1994	32840.2781037327
1995	33696.74382819831
1996	34715.16163061252
1997	36032.04024584769
1998	37480.70944777324
1999	39106.38816171993
2000	40456.942237447394
2001	41087.042173269016
2002	40914.32550267678
2003	40785.12222162058
2004	41450.40426972659
2005	42201.77541330816
2006	43592.30274492209
2007	45138.67843679802
2008	45939.14819878462
2009	44027.60255777063
2010	44390.504409813446
2011	44869.312941309385
2012	44242.973526130416
2013	44055.304259047305
2014	44521.894539027635
2015	45193.40321879707
2016	45938.78504408647
2017	46997.345454196155
2018	47826.819117284314
2019	48443.73205402828
2020	46303.21886246999
2021	48913.51899025225
2022	50546.78937281694
2023	50100.191367887346