Annual base year varies by country
1960 23.68092433967083
1961 25.524654237649553
1962 26.596581891735294
1963 28.062178307669843
1964 29.55752925420753
1965 31.07585734886168
1966 32.620597553998834
1967 34.41322663474104
1968 36.10596616934249
1969 37.706687605813805
1970 44.26630623785337
1971 46.520059677933055
1972 49.12723996012523
1973 55.369050419614126
1974 66.89137773113944
1975 71.69246680344595
1976 77.43351816361044
1977 82.65958887216837
1978 86.4650365477354
1979 88.84423532337317
1980 93.67557053307533
1981 96.35250189554154
1982 98.04784638042163
1983 98.95062249898126
1984 100.36522642713453
1985 101.63045114534926
1986 103.26876131584154
1987 103.09962187324093
1988 103.72831231821269
1989 105.87449284707455
1990 108.58954272380228
1991 111.74360307639436
1992 113.61784455090667
1993 114.21821333305458
1994 114.43158281177033
1995 113.83258041136412
1996 113.32514277839773
1997 113.89682371643461
1998 113.86643576251343
1999 112.45329482740287
2000 110.95062632874873
2001 109.74694534230969
2002 108.22038880158954
2003 106.48052559854221
2004 105.28286842422354
2005 104.02577236063308
2006 103.12905107334794
2007 102.40174009505539
2008 101.4683172183579
2009 100.89038927387557
2010 98.99290139934487
2011 97.3871570967524
2012 96.65081950261349
2013 96.30831310849044
2014 97.93235517118036
2015 100
2016 100.41994437605727
2017 100.34528264576868
2018 100.34504431931272
2019 100.98203783727084
2020 101.93273293034582
2021 101.73899894120024
2022 102.0787867249507
2023 105.90940785495597
