Year	base year varies by country
1990	0.09103997530298814
1991	0.18143850363615482
1992	1.2607194775915755
1993	19.752820497327907
1994	41.828325743631936
1995	51.67046393395665
1996	53.66138040908167
1997	57.35886932766909
1998	62.04944958182289
1999	64.22946260432762
2000	67.01653098674822
2001	69.84936015458119
2002	72.53456124454392
2003	75.65382208831649
2004	78.40000527507554
2005	80.84288278372401
2006	83.97975958320467
2007	87.56958432040454
2008	92.39549676925655
2009	95.1486558173394
2010	96.03350066034099
2011	97.63518071239376
2012	99.02275250655053
2013	99.73414343212839
2014	99.87859642226546
2015	100
2016	99.98348340875265
2017	101.21429871841332
2018	103.25812894763394
2019	105.31550027107257
2020	106.18707470773852
2021	108.45354544342707
2022	117.73021395059486
2023	127.76395062889412