Year	base year varies by country
1990	0.1549751765264745
1991	0.5088405071437953
1992	5.3036780322799055
1993	21.543245551992236
1994	34.82147966985913
1995	48.06957009917244
1996	57.19823534577601
1997	63.746683495485634
1998	65.88311345168498
1999	65.05503374006484
2000	65.89979829947679
2001	65.68772576224005
2002	65.89704404077162
2003	65.36097520953791
2004	67.11382401919947
2005	71.73468368273404
2006	76.5664343853841
2007	83.11637557007245
2008	91.1862347150644
2009	88.18070106257407
2010	90.41474471566951
2011	95.25189042827807
2012	97.85631857011559
2013	99.11018311638176
2014	99.93635773770225
2015	100
2016	101.57625277213522
2017	105.8865717730013
2018	109.62137569362602
2019	112.6596012513438
2020	114.79108120589947
2021	122.30676956227326
2022	142.55921991918396
2023	152.69022470219903