Year	base year varies by country
1990	11.0682530810164
1991	12.7261596733511
1992	13.6530419178053
1993	15.5467874511427
1994	18.2194827745425
1995	27.5599890418734
1996	30.5699300258657
1997	35.3454123925639
1998	36.1329791010131
1999	34.8625074228424
2000	36.0043961717044
2001	35.8630319581395
2002	33.9884175276178
2003	40.9088790209773
2004	45.4476659928306
2005	49.5519720858353
2006	50.7717388351511
2007	57.3396184819012
2008	65.6274747032905
2009	70.3183045273951
2010	72.5594787877089
2011	77.7775686843638
2012	81.450892242382
2013	83.6416687411662
2014	87.5999126895951
2015	88.025570509614
2016	92.4533719568327
2017	100
2018	99.3966712541609
2019	101.852922232331
2020	108.689139314813
2021	111.794937961651
2022	129.58654247668
2023	142.713823965897