Annual base year varies by country
1960 3.6505293048670824
1961 3.495742418918276
1962 3.602275516962515
1963 3.7355968111390108
1964 3.6429998172613796
1965 3.7432997950808593
1966 3.5346845051598423
1967 3.6976166221334936
1968 4.027531856025028
1969 4.025346049001689
1970 4.1007696273766445
1971 4.372870556450397
1972 4.858693066660757
1973 5.887895777172449
1974 9.27412287973632
1975 11.552909962305268
1976 12.476639936779737
1977 14.141309947434067
1978 14.588857039192854
1979 18.193469389998445
1980 22.330125980194474
1981 23.942319642772755
1982 26.854171820773036
1983 28.552610316115413
1984 30.268824103334797
1985 30.643430482933713
1986 30.260488999032376
1987 31.728931149250172
1988 33.048211026177995
1989 35.422397914604744
1990 40.90893289052676
1991 41.552181552158345
1992 38.67890750136554
1993 42.087209679477795
1994 47.67125751711882
1995 49.65880947618508
1996 50.57727061091192
1997 48.78503081744795
1998 47.87934458496632
1999 49.93967983307981
2000 55.95399191518858
2001 57.51731714887146
2002 54.53071037277496
2003 60.244744356482215
2004 65.59702281778185
2005 74.33548148447119
2006 75.62090004031276
2007 85.26396399959296
2008 105.55041054234759
2009 76.384940593441
2010 86.1112918286554
2011 99.65634249929998
2012 99.99985564778412
2013 101.65376437605983
2014 100.7225540920754
2015 91.92583475583021
2016 91.2441899378154
2017 98.73867797325846
2018 101.3918427963541
2019 97.52649969357283
2020 93.82840876184241
2021 111.74340425173304
2022 135.00226125710412
2023 123.73191591920218
