Year	current US$
1960	279.5344977567844
1961	282.2151739392639
1962	287.3693518928533
1963	293.2920888195091
1964	307.61958434566804
1965	313.6068527994759
1966	312.2243759113626
1967	328.78157066967725
1968	329.96021007789875
1969	352.4158291361058
1970	416.7253857286758
1971	460.5006091473372
1972	577.9270779550167
1973	764.3877502851418
1974	986.3871497994569
1975	1188.394721747496
1976	1183.9967923680492
1977	1200.5923115275743
1978	1351.4553836703928
1979	1621.4945801423871
1980	1865.7344080481882
1981	1870.3764141943898
1982	1763.8377398378016
1983	1619.2279767314435
1984	1657.8459527039795
1985	1568.7012004445805
1986	1737.3640890558722
1987	1560.6548748392515
1988	1452.188760361386
1989	1530.5476168964467
1990	1713.1806305463417
1991	1763.2859638636069
1992	1947.5039861713362
1993	2073.1188458908973
1994	2308.7065837468285
1995	2486.981930114654
1996	2672.43577032827
1997	2597.9292555902557
1998	2031.0250134005687
1999	2351.722429128626
2000	2015.8574957127084
2001	1964.1302042767904
2002	2157.076596136934
2003	2680.2707488037613
2004	3124.6073892632476
2005	3406.47559239037
2006	3483.597184936257
2007	3793.0973850095875
2008	3928.921738579642
2009	3184.689122914809
2010	3469.1496425487826
2011	4160.721193118146
2012	4359.792400353088
2013	4586.955211175874
2014	5305.064407431994
2015	5105.189592210621
2016	5368.433502763625
2017	5825.199668862536
2018	6073.394582178783
2019	5927.724189963454
2020	4815.689129417642
2021	4656.051361916799
2022	5356.164380362908
2023	5868.159167783898