Year	current US$
1960	24.604059441317318
1961	32.41059344927289
1962	18.805217719148725
1963	17.562992071264507
1964	33.6828423563724
1965	39.194782270744774
1966	26.550603224150517
1967	23.337679657689716
1968	18.76904526809667
1969	22.695344468161675
1970	13.548146726429048
1971	4.528338259798115
1972	18.630537907362744
1973	21.74057729922753
1974	28.951283590816864
1975	28.37881605414152
1976	25.25420816120767
1977	50.65200268721973
1978	77.55660250847768
1979	83.70014595409546
1980	80.42581810741775
1981	57.13961001034177
1982	41.54851862882263
1983	49.39703140039389
1984	42.713527483527756
1985	34.12585323655254
1986	45.10032226963747
1987	57.38998287201309
1988	48.172661867145294
1989	35.910076914169466
1990	62.79778722769987
1991	59.47991953457444
1992	60.5405504115841
1993	56.85661778578312
1994	60.58273798677927
1995	60.56169795075993
1996	33.94663161798637
1997	28.705990239617897
1998	34.78060074582573
1999	28.62417355040928
2000	12.74143724424054
2001	27.99127288613582
2002	21.088513561848156
2003	32.291363336606544
2004	20.567405238208366
2005	43.57739450321461
2006	32.27138283464572
2007	46.973821382264056
2008	64.46640621012644
2009	51.165144551819736
2010	82.86057112303476
2011	112.26094798750012
2012	80.63384457209
2013	105.32772931115987
2014	76.71435096266605
2015	81.68891123786351
2016	129.2226678736272
2017	128.2015655949348
2018	104.53901281130238
2019	60.301996283639895
2020	89.25553803051527
2021	104.8670971442709
2022	80.40477231401466