Year	base year varies by country
1995	2.1502634956897597
1996	3.7038952019440137
1997	41.85868532058146
1998	54.951297302629264
1999	55.603167175449016
2000	58.74584654397291
2001	62.11266970838106
2002	64.18263803103066
2003	64.7471470178689
2004	67.44336766130921
2005	72.25656192793562
2006	75.7327916921106
2007	82.62917428533602
2008	89.35195142420814
2009	90.7027597662953
2010	91.08310271807804
2011	94.62044865796545
2012	97.08060164461668
2013	97.4654847865668
2014	98.02202652848277
2015	100
2016	101.35741836289324
2017	106.02708500106841
2018	109.70462082125734
2019	113.74892498960436
2020	115.3065846709099
2021	124.03580974079975
2022	143.9215191521535
2023	154.31712337077806