Year	base year varies by country
1990	41.4979219724495
1991	37.9713904991717
1992	38.4547948366786
1993	36.3823224905977
1994	36.2184365779391
1995	36.8544926067442
1996	39.5875297437109
1997	38.7026557561292
1998	33.5349223489478
1999	37.2366058152818
2000	43.71902415382
2001	41.7243288903898
2002	43.686943835786
2003	48.2070691918752
2004	54.4777914894785
2005	66.7160219421166
2006	75.8095048808235
2007	82.0744881303261
2008	109.775528224093
2009	82.1909834630748
2010	95.0417780685108
2011	110.1386814909
2012	114.110760643337
2013	111.577031788439
2014	113.537774464927
2015	91.7992956785237
2016	83.4122593238545
2017	89.4996387127234
2018	100
2019	97.3338383552327
2020	86.8376705150402
2021	97.8623338664921
2022	121.981828443687
2023	113.616881668225