Annual base year varies by country
1961 6.84661021618941
1962 6.980481650823242
1963 7.237755442025766
1964 7.596457372167623
1965 7.777245161865691
1966 7.820268523994129
1967 8.339800383711655
1968 8.617220890232462
1969 9.098696775643186
1970 9.904325909161052
1971 10.659352951986769
1972 11.63478625193233
1973 13.294109699646473
1974 14.837848449155869
1975 15.499420205600408
1976 16.993087712595216
1977 17.648758778140625
1978 19.082257784658914
1979 22.471235717561665
1980 26.009359233006506
1981 28.77051775263169
1982 31.556907244379474
1983 33.0093886728245
1984 36.192189155549656
1985 38.132530450853615
1986 39.57040142615171
1987 42.977940015742355
1988 46.76083525713764
1989 52.63375769311509
1990 56.61546368474407
1991 61.79036842387515
1992 67.90725380013242
1993 73.75604361304082
1994 78.41829065295155
1995 81.66448701256999
1996 86.46928008590223
1997 91.45009910380324
1998 92.56572289881328
1999 88.77452188494311
2000 85.76132273035635
2001 84.23995796744008
2002 81.37421673597652
2003 76.48549983688534
2004 73.73899751394208
2005 73.62836297238294
2006 73.23456039563735
2007 75.53225855159785
2008 76.50014224878528
2009 76.21291082982181
2010 76.41919105443075
2011 79.39790853128461
2012 82.21240616676083
2013 83.7024641340301
2014 86.08824635201863
2015 89.22487959953942
2016 90.68664255248186
2017 93.2989620200145
2018 96.7133025989601
2019 98.6910442645857
2020 99.32099420731187
2021 100
2022 101.69019081164635
2023 104.91385626448721
