Year	base year varies by country
1960	2.5102034550705326E-05
1961	2.7344988918474136E-05
1962	2.9688531155863383E-05
1963	4.340464498717471E-05
1964	6.5527223150477E-05
1965	9.038811288383824E-05
1966	0.00011709683767996977
1967	0.00014712116335917133
1968	0.00019561050142176558
1969	0.00026606069546948255
1970	0.00038345565473763194
1971	0.0004535333144924476
1972	0.0008302642474263239
1973	0.004229546187615252
1974	0.03704880135978163
1975	0.16963074485665447
1976	0.5830820432947805
1977	1.2136975859762655
1978	1.9161202177042165
1979	2.826644123270909
1980	3.7511588013807384
1981	4.2312811415570435
1982	4.48094591948683
1983	5.679013368233712
1984	6.988803271493674
1985	9.658827877879153
1986	11.826335867218416
1987	14.684139949661883
1988	17.185952720954585
1989	19.750744788549632
1990	24.76006966981514
1991	30.010940987978547
1992	34.328393550835436
1993	39.00386164798182
1994	42.57648244118738
1995	45.4025898033895
1996	47.54279358117692
1997	49.242336153218524
1998	50.08217186183869
1999	50.261599178347346
2000	52.373757488458594
2001	55.07186883724467
2002	56.890816616490994
2003	57.888639753797555
2004	58.08781671905513
2005	60.187137670307
2006	61.90766136894559
2007	64.295405577095
2008	69.86696686796867
2009	72.07230118461536
2010	74.27498813691172
2011	76.64000795481782
2012	78.81919415948839
2013	81.35340896160362
2014	86.99570745926005
2015	92.08295584774895
2016	95.3966409175061
2017	97.69235936106047
2018	100
2019	103.11341658005718
2020	109.76817046862813
2021	113.76010079606023
2022	126.18602221399135
2023	133.61457942999758