Year	current US$
1960	252.7561711650617
1961	253.2272900349984
1962	261.1791338061172
1963	280.09663644485767
1964	279.93046450015567
1965	278.82813848172054
1966	283.19272459217353
1967	287.968047136813
1968	310.66174520335755
1969	322.4375293697487
1970	349.02497563332724
1971	355.09037110772346
1972	367.1188811408727
1973	438.54485116069634
1974	527.4176968119714
1975	594.6518035520573
1976	696.2220152750016
1977	854.6366433809833
1978	925.1257444659101
1979	1027.0836960251359
1980	1143.4404019769108
1981	1217.2640204910463
1982	1200.2492338204552
1983	1212.7165586723636
1984	1234.7026407120961
1985	1233.0809439630173
1986	892.292906492455
1987	850.218512067165
1988	915.3980653359624
1989	955.1134608633613
1990	845.3148766855954
1991	1011.7589900595681
1992	1093.9565611832174
1993	1164.38166999029
1994	1293.469973041827
1995	1424.6825425625764
1996	1487.6076583997421
1997	1649.0016020609862
1998	1755.8495822319112
1999	1619.510735525314
2000	1664.3077480243796
2001	1550.3617465297323
2002	1682.9945006893565
2003	1737.879286929734
2004	1859.0992991588676
2005	2068.4882063149325
2006	2251.078783863258
2007	2490.7478282548677
2008	2802.451582450941
2009	2651.831744043352
2010	2852.557592848082
2011	3228.038277840755
2012	3355.034777374062
2013	3522.767429009784
2014	3779.6262051888903
2015	3994.6290851901904
2016	4173.281348636626
2017	4454.024509481651
2018	4485.7521349507315
2019	4647.80754129437
2020	4609.897257528689
2021	5029.477554840931
2022	5473.208564445892
2023	5797.521595945263