Year	base year varies by country
1990	3.17394907934362
1991	3.5856661488824
1992	3.80058529373288
1993	4.22558875979033
1994	4.55098425804209
1995	5.44686209392062
1996	6.19445547758287
1997	7.39325709344034
1998	13.6408889953924
1999	31.0976756945998
2000	38.8092078441139
2001	42.2508370383427
2002	44.9204412793833
2003	50.9622809883972
2004	56.4103672217017
2005	61.2844048623455
2006	67.9062468437109
2007	72.957307699
2008	79.4238426536944
2009	77.095077185272
2010	84.185180781994
2011	92.9982896185993
2012	100
2013	106.473972083433
2014	112.571267107947
2015	115.214998820847
2016	118.697149153009
2017	120.895535208122
2018	123.216595524512
2019	124.692020514079
2020	130.969645430961
2021	135.833135590319
2022	157.25938094331
2023	195.664826956025