Year | Value | 2022 | 74.775605831272 | 2021 | 74.658182200547 | 2020 | 72.92239754782 | 2019 | 73.115610988142 | 2018 | 73.548827055951 | 2017 | 72.934245828854 | 2016 | 72.729740534962 | 2015 | 77.841529861777 | 2014 | 77.910057674687 | 2013 | 77.963905623634 | 2012 | 78.77623736984 | 2011 | 79.377916333271 | 2010 | 79.18997614912 | 2009 | 79.667586421695 | 2008 | 80.810587953659 | 2007 | 79.252616201864 | 2006 | 78.563386763993 | 2005 | 78.944286249154 | 2004 | 78.812086805429 | 2003 | 79.814377690412 | 2002 | 79.161061268854 | 2001 | 79.368497650487 | 2000 | 79.981221839277 | 1999 | 81.272278607385 | 1998 | 81.364289148323 | 1997 | 82.85997499068 | 1996 | 83.579612643169 | 1995 | 86.873209975416 | 1994 | 86.896148879755 | 1993 | 87.700716393226 | 1992 | 86.135589308242 | 1991 | 85.426820993694 | 1990 | 84.093710540558 | 1989 | 84.716736678382 | 1988 | 86.221292349249 | 1987 | 85.90155315909 | 1986 | 84.78876214941 | 1985 | 85.485611293438 | 1984 | 93.222922449532 | 1983 | 87.951222660143 | 1982 | 85.219084765212 | 1981 | 85.161085589942 | 1980 | 97.949272233837 | 1979 | 98.484752454808 | 1978 | 98.376390091905 | 1977 | 93.817476469005 | 1976 | 102.97874935154 | 1975 | 99.057562529675 | 1974 | 99.272612912939 | 1973 | 96.60383094539 | 1972 | 103.36013234555 | 1971 | 96.208269918418 | 1970 | 92.84971423095 | 1969 | 91.010972675426 | 1968 | 89.120721171381 | 1967 | 92.580871744942 | 1966 | 93.350643027577 | 1965 | 92.227605651758 | 1964 | 92.118277110002 | 1963 | 91.817164537473 | 1962 | 88.070933756335 | 1961 | 93.188233782192 | 1960 | 92.416303823044 |
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