Annual base year varies by country
1960 5.681644772896716
1961 5.740815448429671
1962 5.957850486044381
1963 6.1097185458111785
1964 6.087499210672795
1965 6.212756840158053
1966 6.283375109910288
1967 6.2922392198698205
1968 6.4982172408426315
1969 6.722678369922488
1970 7.061975102713519
1971 7.173080011031678
1972 7.554488891922221
1973 7.918822245078855
1974 9.10036674036481
1975 10.396890143904528
1976 11.856138384140287
1977 12.469917248364238
1978 14.008014073215557
1979 15.829712293702821
1980 17.442414866117236
1981 18.745179808657642
1982 21.772204683334774
1983 22.805559183271633
1984 23.251084244729604
1985 22.11713311260693
1986 21.31999346495183
1987 21.965660907614367
1988 21.831559030499488
1989 22.317296909789526
1990 22.80305450819277
1991 22.975587013488262
1992 23.670629414749232
1993 24.23359316004174
1994 32.722648175541416
1995 37.66358869983876
1996 40.26512337606614
1997 41.74185046985587
1998 43.92561910075669
1999 65.16038057422395
2000 67.9890289655435
2001 69.32860700037077
2002 71.79269353958013
2003 73.99077339870811
2004 74.560288523362
2005 77.76165689083707
2006 79.39023254718684
2007 79.69997611028082
2008 84.82799388118683
2009 86.98236370725459
2010 87.74857888499477
2011 91.02430620156579
2012 98.0321838636733
2013 99.4019859949445
2014 99.15568511603453
2015 100
2016 100.68359111127465
2017 100.313178470008
2018 100.98572578180605
2019 100.5842531984837
2020 103.47910048278112
2021 105.15414262104765
2022 109.50624124513979
2023 113.21353600566168
