| Year | Value | | 2024 | 247,938 | | 2023 | 238,224 | | 2022 | 230,556 | | 2021 | 225,514 | | 2020 | 218,955 | | 2019 | 211,093 | | 2018 | 205,232 | | 2017 | 200,990 | | 2016 | 197,748 | | 2015 | 195,701 | | 2014 | 191,442 | | 2013 | 183,753 | | 2012 | 175,132 | | 2011 | 165,278 | | 2010 | 156,652 | | 2009 | 150,159 | | 2008 | 143,750 | | 2007 | 140,461 | | 2006 | 138,132 | | 2005 | 133,021 | | 2004 | 128,901 | | 2003 | 124,743 | | 2002 | 117,421 | | 2001 | 111,500 | | 2000 | 110,993 | | 1999 | 110,094 | | 1998 | 106,413 | | 1997 | 102,767 | | 1996 | 99,152 | | 1995 | 95,431 | | 1994 | 90,967 | | 1993 | 83,663 | | 1992 | 74,369 | | 1991 | 68,598 | | 1990 | 67,552 | | 1989 | 66,584 | | 1988 | 64,599 | | 1987 | 63,947 | | 1986 | 64,368 | | 1985 | 64,907 | | 1984 | 64,340 | | 1983 | 63,435 | | 1982 | 64,406 | | 1981 | 70,505 | | 1980 | 78,264 | | 1979 | 81,650 | | 1978 | 81,814 | | 1977 | 80,504 | | 1976 | 79,071 | | 1975 | 77,594 |
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