Year	base year varies by country
1985	28.491343008862263
1986	24.063554372262395
1987	23.482993330152684
1988	25.181441153551482
1989	26.04404163839389
1990	28.127257234614074
1991	28.704534762314466
1992	25.689640400851733
1993	25.538187768877922
1994	40.41786319243754
1995	44.098178461785395
1996	48.358906683595954
1997	50.56614432550403
1998	55.01265752767656
1999	50.45769652711813
2000	52.13998092745958
2001	57.934672891568596
2002	59.02397068630382
2003	57.63791301080259
2005	100
2007	112.34037314226306
2008	119.3396954043504
2009	105.99874144234522
2010	113.90501146209336
2011	123.66314319113904
2012	122.10807597461117
2013	117.36443458674356
2014	119.87219080202082
2015	129.44312618187718
2016	127.50295422650319
2017	131.45040834279374
2018	133.32822601665663
2019	137.53259766821148
2020	148.3676078430971
2021	142.60345558685097
2022	143.81914757185984
2023	155.65653259443872