Annual base year varies by country
1960 15.795791939616096
1961 16.009059439959504
1962 16.20831375081416
1963 16.384722770356724
1964 16.63113911739617
1965 16.950428018876394
1966 17.44178338782454
1967 17.991422708709752
1968 18.777142005549795
1969 19.708204423055236
1970 20.745393709270367
1971 21.797145236954478
1972 22.740117348221673
1973 23.986258369348057
1974 26.14470812435563
1975 28.566437707406973
1976 30.138589296408004
1977 32.01120012543092
1978 34.26284574428548
1979 37.105538798715806
1980 40.45732122316027
1981 44.285459342699426
1982 47.021594000372374
1983 48.863386946640475
1984 50.62631897587052
1985 52.22738909958271
1986 53.27919259021571
1987 54.59912516264761
1988 56.525109225982106
1989 58.74132280504618
1990 60.94020383496797
1991 63.001086556507644
1992 64.43678955547837
1993 65.96415078208999
1994 67.37261628611793
1995 68.78521017489409
1996 70.04450542483984
1997 71.25238646522075
1998 72.0531675436637
1999 73.07279056088166
2000 74.72803188814582
2001 76.41067544657705
2002 77.59809326239142
2003 79.13012382828427
2004 81.25800217856333
2005 83.80580991059232
2006 86.39024426144637
2007 88.73077928568279
2008 90.44036381617421
2009 90.99818253888195
2010 92.10407133202024
2011 94.00427915492932
2012 95.75479387229167
2013 97.38442590360648
2014 99.08049064555333
2015 100
2016 100.95032247921247
2017 102.75814416993067
2018 105.1122205016102
2019 106.87653739963119
2020 108.2879686128108
2021 113.25269622803047
2022 121.22684795093551
2023 125.64556080013047
