Year	base year varies by country
1990	2.14869701300043
1991	3.46068661553829
1992	4.76917810852113
1993	6.81784041172524
1994	10.2431952757641
1995	15.5143291228367
1996	23.0881083299449
1997	25.5227605868904
1998	27.0945702995846
1999	29.5162258268841
2000	32.944698643044
2001	37.8146074173256
2002	41.5324932711811
2003	43.0443372108833
2004	45.5384400065424
2005	48.8768848939873
2006	52.5237576761796
2007	56.429570525433
2008	59.337275735025
2009	60.2103485267675
2010	64.8135669435584
2011	66.3356243087564
2012	68.4419359868903
2013	70.222272449022
2014	70.9847956682354
2015	75.9962869881336
2016	85.2381128343692
2017	92.0384200472298
2018	95.5313872647696
2019	100.000006755844
2020	103.171668037521
2021	107.86656205521
2022	114.771044989236
2023	122.542656109674