Year	base year varies by country
1990	56.9187001536951
1991	58.686900903386
1992	60.4071511350467
1993	61.806092344302
1994	64.0244619546043
1995	65.974883182204
1996	68.2262151492263
1997	69.9527617945579
1998	71.8285567996551
1999	73.2729192042225
2000	74.3634050413794
2001	75.9137207908927
2002	76.8950458122033
2003	76.5234550183873
2004	78.3216209951436
2005	81.9845483990867
2006	82.9061117575837
2007	86.5320467513661
2008	90.6313913367686
2009	91.63814755519
2010	93.1094111084549
2011	93.7319830071309
2012	93.9126446421785
2013	94.3604928636029
2014	96.0385925085131
2015	98.716312092808
2016	98.2541210267635
2017	98.5607274322443
2018	100
2019	100.718452311458
2020	101.524269981556
2021	106.512929537286
2022	113.435051657703
2023	118.886145582916