Year	base year varies by country
1990	0.0176801785370612
1991	0.0262501867702693
1992	0.383785286317391
1993	29.3396700759977
1994	43.7508077255807
1995	49.6057360974932
1996	50.4190885701215
1997	56.0404609601201
1998	54.6732448187931
1999	59.2840165534908
2000	62.7774702239144
2001	65.7444073031819
2002	69.0367993683273
2003	70.0108129774173
2004	71.5244268553461
2005	75.9510849113823
2006	81.8753662655713
2007	86.9496489040778
2008	93.3277110931164
2009	93.5008027598258
2010	94.8156989073914
2011	97.1221172447111
2012	97.8949891680794
2013	97.6755849573476
2014	98.6526701878484
2015	100
2016	101.333305967465
2017	103.135728601171
2018	106.014891285743
2019	108.635054290237
2020	108.702562882766
2021	114.099215119623
2022	127.573008995758
2023	134.628436769687