Year	current US$
1960	0.011436965906098018
1961	0.5523895733100738
1962	1.1802532625219802
1963	1.1797953719276837
1964	3.7744397920139354
1965	3.732554713982426
1966	5.289393506394414
1967	5.127747858667838
1968	6.937600440957579
1969	7.3475792430486235
1970	6.754169835785729
1971	8.523956589660267
1972	8.777346829511776
1973	14.003686314676594
1974	25.942066416885805
1975	25.708414907333218
1976	22.90359484676819
1977	16.833480281082355
1978	26.716113316999095
1979	28.81671078269063
1980	26.79819364903695
1981	30.05845512018701
1982	39.174675644644594
1983	25.650969972866605
1984	22.620220196909912
1985	41.410104800844735
1986	40.99555468050409
1987	46.440878383624835
1988	47.17963851539673
1989	36.72341467925925
1990	46.30346376264909
1991	42.79969953102781
1992	40.04538028855644
1993	36.82335655301434
1994	39.28550339238722
1995	27.755481006509125
1996	24.83365143631867
1997	31.753728653217905
1998	26.93156617809169
1999	16.67368750004661
2000	18.000175236390877
2001	21.525289262068434
2002	23.747408489756324
2003	37.28608782978965
2004	41.04770802440367
2005	37.75400095425898
2006	37.7259773391725
2007	31.250770316287365
2008	35.81130402619996
2009	26.888159152004985
2010	44.533899379795145
2011	37.30057312075256
2012	49.63349748328853
2013	42.743337901073645
2014	47.37659333184846
2015	43.19925789066333
2016	45.52584268283718
2017	56.3393295445572
2018	57.95706420207628
2019	61.40408171851447
2020	79.30544375473393
2021	71.57406403183981
2022	77.64964228496156