Year	base year varies by country
1990	0.154975176526474
1991	0.508840507143796
1992	5.30367803227991
1993	21.5432455519922
1994	34.8214796698591
1995	48.0695700991724
1996	57.198235345776
1997	63.7466834954856
1998	65.883113451685
1999	65.0550337400648
2000	65.8997982994768
2001	65.68772576224
2002	65.8970440407716
2003	65.3609752095379
2004	67.1138240191995
2005	71.734683682734
2006	76.5664343853841
2007	83.1163755700724
2008	91.1862347150644
2009	88.1807010625741
2010	90.4147447156695
2011	95.2518904282781
2012	97.8563185701156
2013	99.1101831163818
2014	99.9363577377023
2015	100
2016	101.576252772135
2017	105.886571773001
2018	109.621375693626
2019	112.659601251344
2020	114.791081205899
2021	122.306769562273
2022	142.559219919184
2023	152.690224702199