Year	current US$
1961	1.3891104074967133
1966	4.926583287801078
1967	0.889462468979136
1969	0.11907191994628699
1971	0.18502912426380108
1973	0.016578166515223865
1974	16.132757546179935
1975	31.471950743792853
1976	35.448549507386
1977	52.304616786045976
1978	62.45530890306221
1979	63.936376158774614
1980	69.87691376649937
1981	75.88552168522422
1982	73.64056641654298
1983	72.24946386529126
1984	61.37371434496158
1985	62.73831138811216
1986	75.75575251443462
1987	119.63490156787104
1988	106.90503424399203
1989	119.9074568305809
1990	129.78261896307538
1991	113.51745091323492
1992	104.89743226320162
1993	89.45258083833232
1994	160.01953035823777
1995	105.26108371847403
1996	158.4862093000384
1997	107.12783231461414
1998	81.08466649063317
1999	43.59812020327094
2000	65.86510586987048
2001	48.26703035415626
2002	46.574648604172424
2003	110.49265658740413
2004	57.79471293370801
2005	48.386876209929525
2006	62.3722214116646
2007	75.26686045585879
2008	79.85590236319455
2009	88.2466980482276
2010	82.3113538622529
2011	74.97745479982373
2012	48.5745586082172
2013	62.21164253373842
2014	63.241800506966925
2015	53.1550038531038
2016	107.2850523311517
2017	60.29813316451682
2018	79.7940762789343
2019	57.240528930865786
2020	73.20565411543991
2021	82.05866107227324
2022	70.59384478551041