Year	current US$
1960	0.018944901171993375
1961	0.17536880301174138
1962	2.759927588526972
1963	4.94486267754895
1964	15.124303059079137
1965	13.127250997563136
1966	20.271858912674663
1967	14.706894120575026
1968	16.23699850260491
1969	12.66505328711897
1970	11.016550841361529
1971	11.922294744048331
1972	15.55268615856044
1973	17.375197095713965
1974	23.932467470843267
1975	34.41983851980282
1976	43.616677248383525
1977	28.20920000170861
1978	45.936172494862085
1979	50.413317350501394
1980	49.829002351709605
1981	43.003625926954946
1982	48.09498180164525
1983	54.999074455028065
1984	48.21807270731419
1985	33.46334844067984
1986	50.464431521907066
1987	62.83770700133369
1988	38.43190650401054
1989	39.03108587359499
1990	91.0358084215705
1991	54.33659342247179
1992	45.61757871412376
1993	47.938298757193834
1994	136.31323236882537
1995	46.26028671836471
1996	153.12460916280898
1997	93.44923680207731
1998	22.12677045280025
1999	46.58796147862023
2000	10.258357937185956
2001	22.70673202511182
2002	17.15019253608361
2003	20.229786427791925
2004	32.68687702965556
2005	388.1330079614516
2006	67.73619433574575
2007	25.551463575928846
2008	114.36809773193161
2009	63.99466376996451
2010	296.3326589474421
2011	56.98684142160295
2012	29.731034162324057
2013	31.269249679002524
2014	21.47279778039787
2015	17.534209093018937
2016	16.765558091902232
2017	20.130489095465652
2018	26.93408070919942
2019	31.71395903715813
2020	37.832938056176296
2021	34.960038814254794
2022	118.50582626910166