| Year | Value | | 2022 | 140,522 | | 2021 | 145,155 | | 2020 | 161,503 | | 2019 | 185,313 | | 2018 | 212,939 | | 2017 | 241,122 | | 2016 | 267,958 | | 2015 | 292,462 | | 2014 | 314,479 | | 2013 | 334,589 | | 2012 | 353,639 | | 2011 | 372,422 | | 2010 | 391,746 | | 2009 | 383,019 | | 2008 | 333,266 | | 2007 | 268,927 | | 2006 | 210,815 | | 2005 | 176,552 | | 2004 | 164,849 | | 2003 | 158,261 | | 2002 | 148,410 | | 2001 | 136,455 | | 2000 | 123,639 | | 1999 | 111,103 | | 1998 | 99,722 | | 1997 | 90,115 | | 1996 | 82,656 | | 1995 | 78,647 | | 1994 | 76,455 | | 1993 | 73,243 | | 1992 | 69,101 | | 1991 | 64,336 | | 1990 | 59,400 | | 1989 | 54,858 | | 1988 | 51,223 | | 1987 | 48,798 | | 1986 | 47,652 | | 1985 | 46,663 | | 1984 | 44,788 | | 1983 | 42,239 | | 1982 | 39,332 | | 1981 | 36,402 | | 1980 | 33,604 | | 1979 | 30,404 | | 1978 | 26,421 | | 1977 | 21,988 | | 1976 | 17,568 | | 1975 | 15,013 | | 1974 | 14,156 | | 1973 | 13,198 | | 1972 | 12,081 | | 1971 | 10,814 | | 1970 | 9,473 | | 1969 | 8,203 | | 1968 | 7,226 | | 1967 | 6,789 | | 1966 | 6,648 | | 1965 | 6,454 | | 1964 | 6,224 | | 1963 | 5,969 | | 1962 | 5,698 | | 1961 | 5,423 | | 1960 | 5,147 |
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