| Year | Value | | 2022 | 417,779 | | 2021 | 402,250 | | 2020 | 390,072 | | 2019 | 379,031 | | 2018 | 366,433 | | 2017 | 357,731 | | 2016 | 353,717 | | 2015 | 349,417 | | 2014 | 343,009 | | 2013 | 334,455 | | 2012 | 325,796 | | 2011 | 316,189 | | 2010 | 305,092 | | 2009 | 293,858 | | 2008 | 281,521 | | 2007 | 269,315 | | 2006 | 258,380 | | 2005 | 248,074 | | 2004 | 236,471 | | 2003 | 223,691 | | 2002 | 213,369 | | 2001 | 205,420 | | 2000 | 198,005 | | 1999 | 190,314 | | 1998 | 182,593 | | 1997 | 175,344 | | 1996 | 168,403 | | 1995 | 158,772 | | 1994 | 149,831 | | 1993 | 147,795 | | 1992 | 145,838 | | 1991 | 138,668 | | 1990 | 133,459 | | 1989 | 128,576 | | 1988 | 120,915 | | 1987 | 114,151 | | 1986 | 107,348 | | 1985 | 102,206 | | 1984 | 104,139 | | 1983 | 106,835 | | 1982 | 100,537 | | 1981 | 94,896 | | 1980 | 98,481 | | 1979 | 101,819 | | 1978 | 101,436 | | 1977 | 101,782 | | 1976 | 102,077 | | 1975 | 102,093 | | 1974 | 101,747 | | 1973 | 101,080 | | 1972 | 100,244 | | 1971 | 99,413 | | 1970 | 98,596 | | 1969 | 97,722 | | 1968 | 96,768 | | 1967 | 95,763 | | 1966 | 94,774 | | 1965 | 93,821 | | 1964 | 92,865 | | 1963 | 91,927 | | 1962 | 91,009 | | 1961 | 89,991 | | 1960 | 88,805 |
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