Annual base year varies by country
1960 0.9876906916129743
1961 1.0184642617310549
1962 1.0869833170430088
1963 1.1838299703092592
1964 1.238066581323522
1965 1.2862252876883622
1966 1.3552631020737889
1967 1.3839999064038335
1968 1.4724707771166066
1969 1.5595100822764738
1970 1.7981491733813835
1971 2.059218257315306
1972 2.1946495824556913
1973 2.5701067089312706
1974 3.4154221086297745
1975 3.7391905974517825
1976 4.052641324979786
1977 4.3917179080277275
1978 4.802613760543846
1979 5.520170726201072
1980 6.305944535111027
1981 7.047822955232914
1982 7.6570021014456
1983 8.747988435956772
1984 13.380875060649958
1985 15.663788127211204
1986 16.116774915822273
1987 17.325069814789067
1988 19.015989545982826
1989 20.746433460855833
1990 23.43451530870095
1991 27.27663213147229
1992 29.426539128294444
1993 31.43037520666072
1994 34.592343402858454
1995 37.235995396261494
1996 40.099058227841844
1997 42.60918539271329
1998 47.042956768364206
1999 50.02295859809387
2000 52.93276086417753
2001 55.90697979060118
2002 58.27245543581972
2003 60.132588742251784
2004 63.674854345342915
2005 67.43860713877243
2006 70.88578998695742
2007 73.1288217772292
2008 78.37889798481308
2009 80.52511487315081
2010 84.04477452483845
2011 87.33832600763454
2012 89.08000603189336
2013 90.91600138877125
2014 93.69171719499714
2015 93.01743403132011
2016 94.20834715783823
2017 96.39422570348522
2018 100
2019 100.69707630104534
2020 102.35907166245124
2021 104.69539542525712
2022 110.4417573638633
2023 115.51819624320161
