Year	constant 2015 US$
1960	853.090270996094
1961	800.53125
1962	807.238891601563
1963	773.925659179688
1964	755.738586425781
1965	783.498962402344
1966	669.715209960938
1967	622.021179199219
1968	608.134582519531
1969	565.341247558594
1970	587.452209472656
1971	620.335083007813
1972	558.430541992188
1973	531.430908203125
1974	631.7587890625
1975	712.788208007813
1976	811.439636230469
1977	901.031860351563
1978	841.764709472656
1979	753.669372558594
1980	751.80029296875
1981	797.393127441406
1982	858.500549316406
1983	870.8984375
1984	838.626892089844
1985	759.28662109375
1986	662.524536132813
1987	645.398132324219
1988	675.438598632813
1989	697.775329589844
1990	726.131591796875
1991	757.966613769531
1992	790.3896484375
1993	827.941772460938
1994	835.610534667969
1995	816.269409179688
1996	824.823913574219
1997	849.994812011719
1998	867.201354980469
1999	879.6005859375
2000	820.393920898438
2001	876.880737304688
2002	870.413330078125
2003	885.773803710938
2004	979.013488769531
2005	1009.44549560547
2006	1052.85168457031
2007	1046.35607910156
2008	1029.61193847656
2009	1028.0771484375
2010	1074.67126464844
2011	970.06982421875
2012	1040.87817382813
2013	1070.74047851563
2014	1145.58520507813
2015	1156.09838867188
2016	1176.72546386719
2017	1160.26037597656
2018	1099.08093261719
2019	1061.62268066406
2020	997.68115234375
2021	962.833984375
2022	930.614440917969
2023	815.910705566406