Year	base year varies by country
1990	0.0910399753029884
1991	0.181438503636155
1992	1.26071947759158
1993	19.752820497328
1994	41.828325743632
1995	51.6704639339566
1996	53.6613804090817
1997	57.3588693276691
1998	62.0494495818229
1999	64.2294626043276
2000	67.0165309867482
2001	69.8493601545812
2002	72.5345612445439
2003	75.6538220883165
2004	78.4000052750755
2005	80.842882783724
2006	83.9797595832047
2007	87.5695843204045
2008	92.3954967692566
2009	95.1486558173394
2010	96.033500660341
2011	97.6351807123937
2012	99.0227525065505
2013	99.7341434321284
2014	99.8785964222655
2015	100
2016	99.9834834087526
2017	101.214298718413
2018	103.258128947634
2019	105.315500271073
2020	106.187074707739
2021	108.453545443427
2022	117.730213950595
2023	127.763950628894