Year | Value | 2022 | 62,798 | 2021 | 61,910 | 2020 | 61,224 | 2019 | 60,847 | 2018 | 60,758 | 2017 | 60,711 | 2016 | 60,708 | 2015 | 60,725 | 2014 | 61,371 | 2013 | 62,883 | 2012 | 64,678 | 2011 | 66,382 | 2010 | 67,828 | 2009 | 68,620 | 2008 | 68,557 | 2007 | 68,221 | 2006 | 67,985 | 2005 | 67,788 | 2004 | 67,409 | 2003 | 66,795 | 2002 | 66,001 | 2001 | 64,995 | 2000 | 63,757 | 1999 | 62,217 | 1998 | 60,526 | 1997 | 59,026 | 1996 | 57,070 | 1995 | 54,478 | 1994 | 53,467 | 1993 | 52,915 | 1992 | 50,978 | 1991 | 48,715 | 1990 | 46,431 | 1989 | 44,583 | 1988 | 42,537 | 1987 | 40,108 | 1986 | 37,951 | 1985 | 35,707 | 1984 | 33,779 | 1983 | 32,328 | 1982 | 30,966 | 1981 | 30,056 | 1980 | 29,176 | 1979 | 27,921 | 1978 | 26,688 | 1977 | 25,588 | 1976 | 24,793 | 1975 | 24,263 | 1974 | 23,900 | 1973 | 23,672 | 1972 | 23,562 | 1971 | 23,549 | 1970 | 23,599 | 1969 | 23,625 | 1968 | 23,371 | 1967 | 22,792 | 1966 | 21,886 | 1965 | 20,715 | 1964 | 19,546 | 1963 | 18,638 | 1962 | 17,950 | 1961 | 17,297 | 1960 | 16,721 |
|