Year	base year varies by country
1990	3.561516522314232
1991	7.226378495591129
1992	22.31256716235177
1993	29.579788376122846
1994	35.77683969642897
1995	44.01713197822103
1996	48.71667050693663
1997	52.778547588214494
1998	56.43344873306766
1999	60.01649913792605
2000	64.4662775666346
2001	69.40002286505654
2002	73.93263117199098
2003	77.82767740655312
2004	80.92722091884522
2005	83.21777341572694
2006	85.38162835710096
2007	88.38826518420689
2008	93.09176792325442
2009	94.49299915020893
2010	95.88926155491896
2011	97.77232333879398
2012	99.05701403863604
2013	100.12139493448929
2014	99.85198007135779
2015	100
2016	100.44494265397792
2017	102.2925074849797
2018	104.4754758421017
2019	106.62999564582852
2020	107.51234959483152
2021	112.17867496733926
2022	122.54429758051968
2023	130.90856075680603