Annual base year varies by country
1960 9.972480094347148
1961 10.298757388341734
1962 10.803014784157147
1963 11.399991285513135
1964 11.85529625948036
1965 12.211178434420379
1966 12.574078913878434
1967 12.956502907948861
1968 13.526494981021337
1969 14.526912333277336
1970 15.314959448991205
1971 16.218582681044467
1972 17.32225375916551
1973 18.68373119459087
1974 20.894569317326532
1975 23.76816954111149
1976 26.323059708369463
1977 28.63294966516583
1978 31.289916962750226
1979 34.515899783342846
1980 38.549751373302996
1981 43.056977687744734
1982 48.2646179457369
1983 52.92232006243791
1984 56.66262035520475
1985 59.752862861392444
1986 62.773472635540315
1987 64.3151018583531
1988 66.36894117908
1989 68.54932519178918
1990 70.37079240351936
1991 72.16319618124875
1992 73.58268648598342
1993 74.77730357415167
1994 75.4688920532227
1995 76.31775737744789
1996 77.35421210121022
1997 78.03353806046965
1998 78.77506165946964
1999 78.93561402227695
2000 80.16171322106746
2001 81.77162831127914
2002 83.46219600413579
2003 85.0140655724725
2004 86.39356793511466
2005 88.066442374406
2006 89.96456252942487
2007 92.26462983583637
2008 94.44860175265626
2009 94.51153047216819
2010 95.52251792835844
2011 96.4280334046036
2012 97.54835843430824
2013 98.30738272940792
2014 98.8745615046704
2015 100
2016 100.52255934340045
2017 101.04686215742858
2018 102.0494739473085
2019 103.35427050656934
2020 106.28940383173055
2021 107.80290995862416
2022 110.98009557100232
2023 117.05329630173098
