Year	base year varies by country
1990	36.6479472013144
1991	38.844306919788
1992	41.2940899393598
1993	44.282685708637
1994	44.6493631941156
1995	45.1540860985057
1996	46.4493050042953
1997	47.9775131481853
1998	51.5508559827762
1999	55.0211673027499
2000	52.4242375992126
2001	54.1256118193992
2002	55.8935965040822
2003	60.198956917661
2004	61.5197272048214
2005	65.6078274928612
2006	68.0659945552828
2007	70.1246208909033
2008	71.6379935293744
2009	72.6342595383819
2010	75.7065325525287
2011	82.8163908193544
2012	85.7783302345615
2013	88.8846179411523
2014	100
2015	102.530898046902
2016	105.230871502833
2017	107.018173206397
2018	108.54395057325
2019	110.222636047006
2020	108.588529774985
2021	105.859632507562
2022	108.477077258172
2023	113.250069324547