Annual base year varies by country
1960 16.16632710322915
1961 16.252805397622634
1962 16.345709469518837
1963 16.691659466157667
1964 17.163079540206216
1965 17.26950046453308
1966 17.490141139342914
1967 17.942903674198778
1968 18.044122781949714
1969 18.262130490887333
1970 18.887140545516516
1971 19.43549836422611
1972 20.40688864183798
1973 22.150091146454358
1974 24.722022346212547
1975 27.04164878134727
1976 28.267855557243866
1977 29.584231738090374
1978 31.92770417970476
1979 34.87949001802765
1980 38.416446339323265
1981 39.815636937397166
1982 41.755329330484464
1983 44.88570835175888
1984 45.61701469897247
1985 45.986314184289775
1986 46.14195458241324
1987 47.19828357220728
1988 47.10769629918271
1989 46.5063391412068
1990 46.7691954698609
1991 46.99967234909357
1992 49.37835373587187
1993 51.13360841210215
1994 53.01519502067713
1995 53.26262070089087
1996 52.76068240233973
1997 53.60951685467771
1998 54.14428202616762
1999 54.60038639255406
2000 53.91887427277248
2001 54.47327573019351
2002 55.38370711377774
2003 56.0102985795566
2004 57.11090348879292
2005 58.109385607573415
2006 59.254131643160065
2007 62.11310805368328
2008 66.78866918784477
2009 71.11053733102285
2010 72.9524097200633
2011 77.21582071456314
2012 81.98464665394357
2013 86.49722131145442
2014 90.12827893194998
2015 92.3623506847467
2016 94.21154534434297
2017 95.84060197020065
2018 100
2019 100.31525086650723
2020 99.76254517109159
2021 101.69326253697484
2022 104.18414103772322
2023 105.78380076259914
