Annual base year varies by country
1960 5.03846182215888
1961 5.207927436053498
1962 5.383617566955072
1963 5.469945168200947
1964 5.649630837166007
1965 5.966394022344544
1966 6.2636121116115255
1967 6.437706815653643
1968 6.690792362524594
1969 7.0937143932415205
1970 7.749780182482893
1971 8.368648521319072
1972 8.97020805469244
1973 9.725040172864723
1974 11.189554633798956
1975 14.073184324248391
1976 16.20014451204693
1977 18.421264371358266
1978 20.531889388433896
1979 23.42001609363066
1980 28.034647977347266
1981 31.278050105584587
1982 33.5984982175373
1983 35.31968528932533
1984 37.09628223690994
1985 39.14091725852729
1986 40.83781535500543
1987 43.05961675687918
1988 45.70053768671528
1989 49.32726935914213
1990 53.21732539045579
1991 56.63339153013904
1992 58.514174737388245
1993 60.11339301066116
1994 60.951147434002216
1995 67.95382667327279
1996 70.76526439530019
1997 70.66117008457107
1998 71.56018152276454
1999 72.54280204757241
2000 73.37261035740804
2001 74.47712393032346
2002 76.05807829200214
2003 77.8779778415345
2004 79.91845592030357
2005 82.26432484592284
2006 84.55689472852603
2007 86.46155178659278
2008 89.40408055135536
2009 91.09481178880128
2010 92.53751796956394
2011 94.56333517399835
2012 96.01847920614152
2013 98.0512518387778
2014 99.3433498736803
2015 100
2016 101.96479827407785
2017 103.85781660719992
2018 105.85401825722234
2019 108.09360638120667
2020 113.58867828051842
2021 113.4518867458167
2022 119.29047831377486
2023 127.78333697736326
