Year	base year varies by country
1984	0.4132837242150158
1985	0.6811522797328582
1986	1.0293263922190203
1987	1.177834688054286
1988	1.4822949276078523
1989	2.301507766887149
1990	3.1739490793436214
1991	3.585666148882402
1992	3.800585293732884
1993	4.225588759790337
1994	4.550984258042097
1995	5.446862093920621
1996	6.194455477582875
1997	7.39325709344034
1998	13.640888995392434
1999	31.097675694599854
2000	38.80920784411394
2001	42.25083703834271
2002	44.92044127938334
2003	50.962280988397204
2004	56.41036722170176
2005	61.284404862345575
2006	67.90624684371097
2007	72.95730769900005
2008	79.42384265369442
2009	77.095077185272
2010	84.18518078199403
2011	92.99828961859934
2012	100
2013	106.47397208343337
2014	112.57126710794651
2015	115.21499882084743
2016	118.69714915300922
2017	120.89553520812217
2018	123.21659552451169
2019	124.69202051407851
2020	130.96964543096072
2021	135.83313559031942
2022	157.25938094330985
2023	195.66482695602514