Annual base year varies by country
1960 7.8504499545362885
1961 8.081047493375655
1962 8.405927070746898
1963 8.638090527569311
1964 9.018039780167832
1965 9.558503481573933
1966 10.1843924500873
1967 10.69465496544262
1968 10.950419601553204
1969 11.324728025705877
1970 11.910568378945026
1971 12.757444120965747
1972 13.64704176076229
1973 14.606943361178972
1974 15.98848952294806
1975 18.308803373826827
1976 20.491023478250643
1977 22.648639997052157
1978 24.81137380782644
1979 26.782192909414697
1980 29.92013118580553
1981 32.54333146634239
1982 35.174331390273906
1983 38.67560612227835
1984 41.628868459801254
1985 44.29499223989155
1986 47.09564195059673
1987 49.31900330129093
1988 52.55985681524658
1989 56.7250503538572
1990 62.0990799073694
1991 67.22025994567694
1992 67.90277496841183
1993 69.40496842965649
1994 71.20119838211968
1995 73.91495473284529
1996 74.66079994504719
1997 75.7997638557054
1998 76.41598538200273
1999 77.10209747542311
2000 78.2630781005494
2001 80.20675961911792
2002 81.4480710305861
2003 82.83288325302969
2004 83.10873489279268
2005 83.67917916274715
2006 85.14976851365664
2007 87.55601005860487
2008 90.38865298575664
2009 92.52083553132024
2010 93.39753097390235
2011 94.41403178197096
2012 95.3595146890531
2013 96.24387471962122
2014 97.9228792303374
2015 100
2016 101.52560991398094
2017 103.69333582640677
2018 106.17878247835655
2019 108.88302385580644
2020 111.0542013591336
2021 113.92593573910084
2022 120.77998752466547
2023 127.56552544687287
