Year	base year varies by country
1990	33.9051306585498
1991	36.2413475577092
1992	37.5976638632552
1993	38.4084074279095
1994	39.3845139329349
1995	40.5345543686819
1996	41.5761776028458
1997	42.6755467863359
1998	43.6942610668595
1999	44.6965936061259
2000	46.1736713975886
2001	47.9937424541103
2002	49.1854680314359
2003	50.7430848189899
2004	53.5080080309295
2005	55.0579739185866
2006	57.018732421793
2007	63.6460744753253
2008	87.6615864680252
2009	93.7679900223861
2010	98.6502903273081
2011	103.4395246979
2012	99.6291392529282
2013	101.159106260071
2014	100.630998674075
2015	100
2016	102.236786066234
2017	106.326254541559
2018	107.708482226327
2019	109.647238595238
2020	109.421581917938
2021	116.550307048154