Year	base year varies by country
1990	0.739215213332474
1991	22.4107216739731
1992	27.7142888614022
1993	33.3656827823327
1994	35.9612848872605
1995	40.777466053427
1996	44.6948809174592
1997	49.0651433301943
1998	55.948240954374
1999	61.1101558132379
2000	66.3449913112145
2001	71.1493700535348
2002	73.4605710670009
2003	77.3768108203141
2004	84.3801104517434
2005	92.7059753931103
2006	100
2007	109.674861856331
2008	127.441370713617
2009	135.132257341403
2010	143.427186848239
2011	158.077242075655
2012	167.946391082337
2013	175.25236226571
2014	189.960640833749
2015	204.374838360802
2016	213.756429354394
2017	222.570836064341
2018	228.487877558055
2019	240.814597252996
2020	253.798726084955
2021	262.792528183076
2022	285.860051629065
2023	316.355367715799
