| Year | Value | | 2022 | 175,922 | | 2021 | 172,020 | | 2020 | 167,939 | | 2019 | 163,544 | | 2018 | 159,006 | | 2017 | 154,515 | | 2016 | 150,116 | | 2015 | 145,884 | | 2014 | 141,879 | | 2013 | 138,137 | | 2012 | 134,665 | | 2011 | 131,482 | | 2010 | 128,526 | | 2009 | 124,102 | | 2008 | 119,281 | | 2007 | 115,970 | | 2006 | 113,376 | | 2005 | 111,404 | | 2004 | 111,547 | | 2003 | 112,396 | | 2002 | 111,827 | | 2001 | 111,052 | | 2000 | 109,908 | | 1999 | 108,317 | | 1998 | 106,796 | | 1997 | 105,605 | | 1996 | 104,422 | | 1995 | 103,017 | | 1994 | 101,726 | | 1993 | 100,087 | | 1992 | 98,336 | | 1991 | 96,474 | | 1990 | 93,933 | | 1989 | 91,928 | | 1988 | 90,684 | | 1987 | 89,396 | | 1986 | 88,078 | | 1985 | 86,745 | | 1984 | 85,409 | | 1983 | 84,075 | | 1982 | 82,729 | | 1981 | 81,383 | | 1980 | 80,041 | | 1979 | 78,701 | | 1978 | 77,356 | | 1977 | 76,013 | | 1976 | 74,686 | | 1975 | 73,375 | | 1974 | 72,081 | | 1973 | 70,810 | | 1972 | 69,523 | | 1971 | 68,156 | | 1970 | 66,681 | | 1969 | 65,107 | | 1968 | 63,426 | | 1967 | 61,702 | | 1966 | 60,078 | | 1965 | 58,609 | | 1964 | 57,275 | | 1963 | 56,080 | | 1962 | 55,005 | | 1961 | 53,957 | | 1960 | 52,873 |
|