Annual base year varies by country
1960 5.781011650032131
1961 6.144866019818657
1962 6.406257554090092
1963 6.904273429480996
1964 7.170498292083612
1965 7.3874406717729615
1966 8.128205816750066
1967 8.576561901482863
1968 8.486959832411396
1969 8.741304973333124
1970 9.065647179337722
1971 9.8192761175736
1972 10.548629763629576
1973 11.375492407034207
1974 12.298470430198588
1975 13.319834361783144
1976 14.475430069320613
1977 16.577918462951555
1978 16.440596422137414
1979 19.252201110627002
1980 23.130366145828297
1981 29.55809295033766
1982 31.344802275845367
1983 33.331552298760094
1984 37.36846812961712
1985 38.30213431036675
1986 27.128381944704998
1987 29.197333847621632
1988 27.37940478037601
1989 30.868652602196693
1990 30.550993092610184
1991 30.098644183655175
1992 29.62631566784625
1993 29.291292813862025
1994 40.05667059349123
1995 41.416966891055544
1996 48.86867610826624
1997 51.29477017463431
1998 41.94779116177521
1999 54.26170868863876
2000 79.78646153433043
2001 68.67603067553587
2002 67.48180425081627
2003 64.61279042860546
2004 75.47241609195862
2005 100
2006 111.38030176257064
2007 118.88746456313461
2008 138.22950802289057
2009 108.97291041903627
2010 141.03021663009284
2011 156.47771532710686
2012 174.25998409747461
2013 172.33517420210848
2014 161.19445775538014
2015 133.38198609112396
2016 128.71029898243154
2017 144.62619863087718
2018 176.78302585853996
2019 174.45413447664916
2020 150.0313321461317
2021 184.97469037388228
2022 218.75273135324127
2023 202.1981758997626