Year	base year varies by country
1997	32.2104866544375
1998	31.6223865201737
1999	35.4674626534627
2000	47.1350158740816
2001	56.6585288014151
2002	58.4008668561054
2003	63.2602711205942
2004	66.9835977570335
2005	69.8870575210505
2006	76.9505148408661
2007	89.2945600650833
2008	96.1069543889206
2009	98.4211256465502
2010	100
2011	101.202703548873
2012	101.381849538242
2013	103.477382870634
2014	104.549644816467
2015	106.870200433971
2016	112.321722924424
2017	116.617997744728
2018	120.380218438958
2019	122.814485445862
2020	122.598815942712
2021	128.393133421311
2022	144.256518675123
2023	157.322600464405