Year	current US$
1960	4.648865215772293
1961	5.085030664383058
1962	3.923319632295005
1963	3.9690739812965554
1964	4.591920166383477
1965	4.438373069967473
1966	5.874410461027682
1967	5.083368476612313
1968	4.9404266987405405
1969	6.840936829742482
1970	9.158336720697065
1971	5.943422353556333
1972	4.233280830062477
1973	10.347602747811031
1974	10.967023039859873
1975	9.515440642604606
1976	8.990810373970213
1977	7.79614850331644
1978	9.205559914471557
1979	25.775352314732796
1980	55.54430291793441
1981	28.17233901951405
1982	27.724113294743276
1983	26.192528445116313
1984	28.48822202121485
1985	26.789552674409535
1986	37.98789097531371
1987	36.78837020669736
1988	54.692308672468954
1989	58.63981155260838
1990	77.95033789484746
1991	184.6467891400944
1992	138.2553054387415
1993	70.01364411731865
1994	116.43453082147684
1995	120.51642608862161
1996	183.55947913450154
1997	72.33716349557226
1998	101.41817992165426
1999	118.36721406623586
2000	97.97154850517526
2001	158.88840843223744
2002	79.110008344718
2003	138.51802343378097
2004	205.1363328587936
2005	120.32790488933315
2006	112.81578621510536
2007	120.66797789449826
2008	111.4589566983027
2009	102.54496945658877
2010	87.29221710926572
2011	90.29452780477415
2012	88.26972265382555
2013	81.02129117888744
2014	69.60743537394026
2015	72.70189547383941
2016	67.45408659821214
2017	86.81232140439535
2018	53.84166771804394
2019	58.23745834104516
2020	68.19673943812448
2021	110.0584803493821
2022	162.23322025666226