Year	current US$
1960	239.5354455835333
1961	281.68308135484955
1962	282.34238609317754
1963	353.1135476059161
1964	297.2843800952818
1965	305.4769728663163
1966	295.95504170618636
1967	304.16394962452637
1968	258.73405194175524
1969	272.7132562189822
1970	271.33874698405884
1971	299.6048019129327
1972	373.99657031957435
1973	467.4802185526467
1974	762.9407586106711
1975	754.8332814872533
1976	787.0982259978139
1977	905.9496387425277
1978	1102.3475368371635
1979	1292.2014302847465
1980	1187.3515708130071
1981	1180.8407093856697
1982	1101.1592052400438
1983	1103.0912458093399
1984	1041.8325237665233
1985	1068.6735931357302
1986	1441.7145283740597
1987	1839.7910956764272
1988	2073.5923878696517
1989	2103.4880269433183
1990	2539.9284646708197
1991	2705.26648158805
1992	3013.2370633716732
1993	3013.8331379049214
1994	3240.3862466270243
1995	3648.016496222559
1996	3951.9449464933564
1997	3695.736688443267
1998	3641.6214256408616
1999	3745.6962506983077
2000	3981.983432495823
2001	3908.556949274354
2002	4073.0605305590316
2003	4858.265755497474
2004	5460.6080018419825
2005	5354.029742606423
2006	5695.975255098691
2007	6574.663576409905
2008	8030.05228087539
2009	7318.126409724222
2010	8000.376431821543
2011	9197.042990894593
2012	9291.23627601053
2013	9764.644130600449
2014	10366.355075493615
2015	9507.871336564236
2016	9965.725310852278
2017	10841.68477548439
2018	11643.4605962124
2019	11403.252787067413
2020	9011.042884450235
2021	9068.972929766856
2022	10239.797046109496
2023	11416.858992993044