Year	base year varies by country
1990	43.7055460398852
1991	45.0250536088688
1992	45.6915023959187
1993	46.0886661686587
1994	46.5587638370861
1995	47.6264389620743
1996	48.9177809446217
1997	49.5404295613078
1998	50.1030137144713
1999	50.341203949206
2000	51.6252825011705
2001	54.0159038742595
2002	55.5501213157323
2003	57.2086367013505
2004	59.0577701836822
2005	61.3170305723149
2006	64.4536350499949
2007	67.6672803609342
2008	70.7595547944178
2009	74.2615589122159
2010	75.1169472267541
2011	79.7757743640267
2012	81.215857972412
2013	81.082841413165
2014	82.2219686561495
2015	81.7097905421342
2016	81.1739606983481
2017	84.1378109835792
2018	85.7186009561115
2019	88.6876556264284
2020	90.5623578544649
2021	93.3505683303578
2022	100
2023	106.557375685114