Year	base year varies by country
1992	33.498432778833866
1993	39.06294162012941
1994	44.47500696298528
1995	48.88199293278687
1996	52.9529959490728
1997	54.94814453816821
1998	58.08772411619317
1999	62.27898527634137
2000	66.88038506038151
2001	70.9820334939263
2002	73.65647035338074
2003	77.39665808228133
2004	82.18550705750648
2005	84.49001931461821
2006	87.90651631140716
2007	89.80886321457129
2008	93.58362798440409
2009	92.71749858671268
2010	93.99252507967944
2011	96.73503857903239
2012	98.92427039112536
2013	100.005417308243
2014	99.92874910769757
2015	100
2016	99.88135691328186
2017	101.59869970394573
2018	104.25342628797227
2019	107.09582876210153
2020	110.24751231866536
2021	113.59623608127238
2022	127.15290986152532
2023	140.0233504948778