Year	constant 2015 US$
1965	653.5353337098772
1966	701.6605218028739
1967	708.0272664409401
1968	710.3978042367647
1969	758.2500666607085
1970	751.0532684908932
1971	731.0705215965593
1972	762.8190094228993
1973	768.7027902886725
1974	798.9104444237697
1975	795.8577013589558
1976	761.1488071201596
1977	789.924641168167
1978	854.7004665578763
1979	789.5714481511203
1980	876.7542051045183
1981	824.4343010550888
1982	758.4649551739683
1983	691.9005645763212
1984	704.4034816620799
1985	722.1780043620885
1986	716.9612298071899
1987	700.4089099826606
1988	725.4233664544228
1989	735.6035310306903
1990	716.4382176813833
1991	692.263466490941
1992	646.351945806263
1993	560.9054889013449
1994	623.3063276080725
1995	650.5788413814605
1996	683.5051864489393
1997	756.873790254697
1998	719.5555006268597
1999	711.7752269993405
2000	688.7699221811031
2001	675.8366607767902
2002	686.756463005716
2003	714.7662617898346
2004	687.6310108850794
2005	638.9023877967403
2006	637.2938570235269
2007	613.4240076598749
2008	622.8744128054203
2009	638.1183899161983
2010	657.1149989270372
2011	709.4227796982404
2012	705.5425329786812
2013	729.9923117662076
2014	754.1051318405348
2015	787.842854692687
2016	788.5202462486308
2017	795.0471862932246
2018	814.6972377751054
2019	834.7838864068365
2020	833.3978681028618
2021	859.6690477505618
2022	890.4434678135109
2023	925.5262008999291