Annual base year varies by country
1960 4.558559072253552
1961 4.601365606613654
1962 4.646299991149242
1963 4.705345238016821
1964 4.7270393750863295
1965 4.796107234434273
1966 4.92121901586097
1967 5.092493954293084
1968 5.549882135304982
1969 5.898473735646083
1970 6.26827969106268
1971 6.866662931791874
1972 7.520765501600925
1973 8.48434174506668
1974 9.755631077305722
1975 10.375799199034768
1976 10.66462505035605
1977 11.653139927862393
1978 12.226324116617985
1979 13.010687239315866
1980 14.292771688261604
1981 16.823934553764015
1982 18.877900076172658
1983 20.95397468718911
1984 23.111511689860155
1985 24.87124256695232
1986 26.32251357325821
1987 28.030358837625602
1988 29.401888212235328
1989 31.059188310550024
1990 32.93316689578381
1991 35.05096421774434
1992 36.03725667558055
1993 37.90986229799262
1994 38.65273181618395
1995 40.267822112734194
1996 52.09234630835823
1997 54.18849184716259
1998 55.67409704497015
1999 57.184062737676854
2000 54.76154218058634
2001 54.01174947718938
2002 58.64619647146404
2003 60.30279876055693
2004 63.13229206907076
2005 67.40153423925129
2006 80.59818968909877
2007 85.8974358974359
2008 90.28586211356875
2009 91.22807017543859
2010 93.26813235320994
2011 92.1943774011801
2012 98.36974459167426
2013 100
2014 103.01189087721518
2015 106.05282257023477
2016 110.69072868165321
2017 110.58575652825013
2018 112.36742242525621
2019 115.08598584513989
2020 114.61435845786652
2021 115.02857478428807
2022 116.10780373103324
