Year	base year varies by country
2006	62.902986133657826
2007	68.4007827337342
2008	76.36788403548013
2009	76.10766148634245
2010	81.04880195433022
2011	82.59517546758856
2012	86.75760401276044
2013	89.63858093896538
2014	91.5267208937675
2015	93.09035257497459
2016	95.02271386307021
2017	98.08920408475763
2018	100.00005102708246
2019	101.50597478695065
2020	105.64706111827866
2021	110.23054141214683
2022	121.74095228321026
2023	128.62447154034044