Year	base year varies by country
1990	37.0989665496473
1991	38.0899143838997
1992	39.3260976468678
1993	36.1026264953968
1994	49.0426675637981
1995	54.4786600029025
1996	57.4139308743692
1997	58.5828983385637
1998	64.1814506230396
1999	64.8971554377512
2000	71.418966997926
2001	72.5859911107232
2002	76.2355099045665
2003	74.0299350390732
2004	72.617526075791
2005	76.8846464706751
2006	76.4934856599053
2007	80.2904633083785
2008	87.5761796567722
2009	90.3061305636161
2010	90.2218424414397
2011	92.7657330543027
2012	94.3894975186665
2013	95.9783331801761
2014	96.4389099512497
2015	98.5631806922436
2016	100
2017	99.1150484664224
2018	99.5652906884292
2019	99.5771823126909
2020	101.502122386193
2021	104.005537707961
2022	108.327813521577
2023	111.138449380197