Year | Value | 2022 | 45,909 | 2021 | 44,537 | 2020 | 43,965 | 2019 | 44,224 | 2018 | 44,097 | 2017 | 43,385 | 2016 | 42,964 | 2015 | 42,860 | 2014 | 43,502 | 2013 | 45,874 | 2012 | 50,350 | 2011 | 56,167 | 2010 | 62,685 | 2009 | 68,940 | 2008 | 74,209 | 2007 | 78,638 | 2006 | 82,411 | 2005 | 85,153 | 2004 | 87,435 | 2003 | 89,669 | 2002 | 90,225 | 2001 | 89,187 | 2000 | 88,041 | 1999 | 86,525 | 1998 | 84,394 | 1997 | 82,893 | 1996 | 82,434 | 1995 | 82,648 | 1994 | 83,526 | 1993 | 85,026 | 1992 | 87,287 | 1991 | 89,373 | 1990 | 90,428 | 1989 | 90,755 | 1988 | 90,167 | 1987 | 88,725 | 1986 | 86,918 | 1985 | 85,170 | 1984 | 84,166 | 1983 | 84,401 | 1982 | 85,557 | 1981 | 87,416 | 1980 | 89,781 | 1979 | 91,773 | 1978 | 92,700 | 1977 | 92,527 | 1976 | 91,306 | 1975 | 89,607 | 1974 | 87,879 | 1973 | 85,587 | 1972 | 83,237 | 1971 | 81,685 | 1970 | 80,541 | 1969 | 79,844 | 1968 | 79,879 | 1967 | 79,715 | 1966 | 78,712 | 1965 | 77,091 | 1964 | 74,967 | 1963 | 73,350 | 1962 | 73,376 | 1961 | 75,210 | 1960 | 78,220 |
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