Year	base year varies by country
1990	10.6641517315758
1991	25.0114502373964
1992	27.8379301175776
1993	32.5567066964258
1994	37.952133470083
1995	42.6398704603767
1996	44.3158645755958
1997	44.9554549335221
1998	46.2906736705756
1999	51.4800928598141
2000	54.8705942855815
2001	55.0472619962247
2002	56.4888130353142
2003	59.154275373059
2004	63.1621182214699
2005	67.9829219986768
2006	71.8085223273785
2007	80.9228908323034
2008	88.6548696000069
2009	89.6771612749095
2010	93.2393644831891
2011	95.4857989808688
2012	100
2013	99.4633194718943
2014	97.3692148779217
2015	100.294487466977
2016	101.195308409029
2017	103.329525431445
2018	100.345897861245
2019	103.317329011879
2020	76.1489018137446
2021	93.260488178237
2022	104.440834646168
2023	89.5485053720843