Year	base year varies by country
1960	0.9217420020711998
1961	0.9553529673426656
1962	0.9568810370062186
1963	0.9458839280746527
1964	0.988339421926456
1965	1.0196290882409058
1966	1.0665387386215792
1967	1.1512180937615812
1968	1.1566206286700407
1969	1.1836343293568454
1970	1.2275276687816215
1971	1.2995895640263662
1972	1.3876312355647176
1973	1.5999592618964058
1974	2.017127868526269
1975	2.4427035013751706
1976	2.7236744919954687
1977	3.009841870908749
1978	3.2801962726532423
1979	3.494504618291156
1980	3.8092969104298184
1981	4.193172695557592
1982	4.586142069589485
1983	4.828019037689191
1984	5.294094484463564
1985	5.5341786404303965
1986	5.716363847605767
1987	5.974640929244725
1988	6.5492556442216605
1989	7.111512386046505
1990	7.5703471060203045
1991	8.591769849416112
1992	9.468251325779333
1993	10.305107749472175
1994	11.64770006137591
1995	13.162656360680616
1996	14.26484586925272
1997	16.17398360434806
1998	17.391243577905048
1999	18.410768047364712
2000	30.932013323689606
2001	32.7918910804438
2002	34.077785270185466
2003	35.28845246205849
2004	37.84733918388574
2005	39.950168295985264
2006	42.3462348413628
2007	46.72116181517604
2008	51.823331000336715
2009	58.236274544278686
2010	64.40270648746123
2011	74.97180648421417
2012	82.4077467407085
2013	88.49199883198672
2014	94.87206438028636
2015	99.08626282288378
2016	100
2017	104.02974599325579
2018	108.02634686890636
2019	117.78796928924251
2020	129.5013917874814
2021	142.79774268153008
2022	162.67147289965598
2023	205.2268836342487