Annual base year varies by country
1960 22.2520037946489
1961 23.15505446972777
1962 24.50431529103478
1963 25.692225745330344
1964 27.056670004420745
1965 28.084077084428532
1966 29.43351971051219
1967 30.744287224068838
1968 31.691551238740708
1969 32.5074158864983
1970 34.03941093056523
1971 37.154399538064155
1972 40.79625861048831
1973 44.1172474852913
1974 47.175728114097915
1975 50.54074506168791
1976 51.92043388520716
1977 52.054394719766975
1978 53.93499767756032
1979 55.00742425998906
1980 56.496300716949996
1981 59.6946171490989
1982 64.08100186049893
1983 65.59772500249805
1984 68.06396199109953
1985 69.60951128925895
1986 71.72187732559374
1987 73.29508385807266
1988 75.34019173340221
1989 77.9458022503001
1990 81.53413182297751
1991 85.9443984260095
1992 87.77040323262064
1993 89.80845305403511
1994 90.87213281923115
1995 91.5425489860064
1996 91.79888868417969
1997 91.3614822760958
1998 91.18857239432192
1999 91.22848614046795
2000 92.47584000724713
2001 93.37690916730887
2002 93.1439674884702
2003 94.24284205274547
2004 94.52239203105867
2005 95.39638226186841
2006 97.44765058846534
2007 99.76404100456558
2008 101.21054777906424
2009 101.67363054717029
2010 101.99160117626802
2011 101.97074091903238
2012 102.0357169434894
2013 101.94710643270865
2014 101.28126561349464
2015 100
2016 99.41670840841603
2017 99.05098494181178
2018 99.80802091941821
2019 99.70432521837954
2020 99.00720491711805
2021 100.24102475124539
2022 102.74420302755559
2023 103.79559886796483
