Year	base year varies by country
1990	0.000884993637892494
1991	0.00202335893372664
1992	0.0321798732827318
1993	0.317885897155313
1994	1.29474308226338
1995	3.15926203284306
1996	4.6136718338153
1997	5.30842177497189
1998	6.29254835420437
1999	10.8475105051288
2000	14.936797228175
2001	17.3983245555057
2002	20.1232338461087
2003	22.8714914233351
2004	27.5041462217393
2005	32.8067894267087
2006	37.7673093908248
2007	42.9947730380534
2008	50.7396443623909
2009	51.7395261889436
2010	59.0819390408053
2011	73.5334321773967
2012	80.0836935611151
2013	84.344257272697
2014	90.6617021254988
2015	97.2344360981971
2016	100
2017	105.349815087676
2018	115.882665065733
2019	119.664070340812
2020	120.738948098629
2021	144.176296540821
2022	168.275759638082
2023	180.178916407102