| Year | Value | | 2024 | 435,815 | | 2023 | 427,697 | | 2022 | 419,558 | | 2021 | 411,524 | | 2020 | 403,523 | | 2019 | 395,681 | | 2018 | 388,069 | | 2017 | 380,484 | | 2016 | 372,617 | | 2015 | 364,397 | | 2014 | 356,095 | | 2013 | 347,714 | | 2012 | 339,950 | | 2011 | 332,922 | | 2010 | 326,068 | | 2009 | 319,396 | | 2008 | 312,871 | | 2007 | 306,493 | | 2006 | 300,233 | | 2005 | 294,034 | | 2004 | 287,906 | | 2003 | 282,498 | | 2002 | 276,779 | | 2001 | 270,197 | | 2000 | 263,993 | | 1999 | 258,353 | | 1998 | 253,578 | | 1997 | 249,425 | | 1996 | 245,349 | | 1995 | 241,332 | | 1994 | 237,344 | | 1993 | 233,335 | | 1992 | 229,261 | | 1991 | 224,798 | | 1990 | 219,671 | | 1989 | 214,191 | | 1988 | 208,732 | | 1987 | 203,351 | | 1986 | 198,026 | | 1985 | 192,768 | | 1984 | 187,625 | | 1983 | 182,624 | | 1982 | 177,770 | | 1981 | 173,092 | | 1980 | 168,418 | | 1979 | 163,518 | | 1978 | 158,463 | | 1977 | 153,352 | | 1976 | 148,239 | | 1975 | 143,190 |
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