Year	base year varies by country
1990	27.1202650492002
1991	27.8605213609529
1992	28.5799251286518
1993	28.6243721059778
1994	29.7596766226717
1995	31.8859872756928
1996	33.2362005599547
1997	34.4992533559942
1998	36.1332113271821
1999	37.4994216829263
2000	38.7918990062373
2001	40.0569649511615
2002	41.6163294952097
2003	44.0366589142355
2004	46.0456713509634
2005	48.1574919288105
2006	50.9871952427828
2007	54.2867092672003
2008	58.5541690762121
2009	62.5149807529919
2010	66.9814654698801
2011	72.2458408289202
2012	78.144405731421
2013	83.751230452617
2014	88.4989105941776
2015	93.6962542971082
2016	100
2017	105.047597582037
2018	111.146176583513
2019	115.212056606306
2020	119.63742472873
2021	124.567892016512
2022	130.857352138425
2023	139.882746030917