Year	constant 2015 US$
1960	468.200012207031
1961	464.179504394531
1962	500.120574951172
1963	503.415069580078
1964	476.861450195313
1965	473.483947753906
1966	479.590972900391
1967	504.297485351563
1968	555.56201171875
1969	550.006958007813
1970	534.425109863281
1971	541.340881347656
1972	550.577331542969
1973	557.185302734375
1974	571.908630371094
1975	621.373168945313
1976	647.402038574219
1977	680.862609863281
1978	711.054016113281
1979	737.200927734375
1980	699.782104492188
1981	700.360717773438
1982	728.611694335938
1983	771.000915527344
1984	785.126220703125
1985	796.090698242188
1986	870.968078613281
1987	871.333862304688
1988	935.01904296875
1989	963.659240722656
1990	974.732666015625
1991	1095.44921875
1992	1074.5341796875
1993	1041.78564453125
1994	1157.13830566406
1995	1094.45141601563
1996	1224.06420898438
1997	1155.42565917969
1998	1204.38549804688
1999	1207.74450683594
2000	1213.38452148438
2001	1211.66479492188
2002	1237.8125
2003	1295.92138671875
2004	1336.50695800781
2005	1362.4248046875
2006	1431.55029296875
2007	1477.39477539063
2008	1568.1005859375
2009	1609.9814453125
2010	1653.14501953125
2011	1720.3095703125
2012	1767.13500976563
2013	1798.43188476563
2014	1830.31274414063
2015	1850.99389648438
2016	1862.71447753906
2017	1908.50756835938
2018	1934.419921875
2019	1955.611328125
2020	1826.42468261719
2021	1934.36291503906
2022	1903.38146972656
2023	1903.11157226563