Year	base year varies by country
1990	24.7418498088803
1991	33.6965161829186
1992	37.8604831634641
1993	45.8145174463177
1994	51.4689299077198
1995	56.0090663962654
1996	61.5568170307906
1997	66.6731162790698
1998	73.2123913122444
1999	75.4393631034776
2000	76.8290570552471
2001	80.5854485849962
2002	82.7808777661872
2003	83.851004907602
2004	87.2461700967775
2005	87.3290053357964
2006	87.9002290063604
2007	91.012232722385
2008	92.8411974747606
2009	95.243761183432
2010	93.8862385286586
2011	93.8669242910919
2012	95.2288592739161
2013	96.5284520282035
2014	99.0174732187288
2015	100
2016	101.141450601203
2017	102.463313041463
2018	105.094134396687
2019	109.181196357873
2020	113.896080241329
2021	117.686324924475
2022	127.745387947018
2023	138.674402331349