| Year | Value | | 2024 | 418,626 | | 2023 | 396,822 | | 2022 | 375,967 | | 2021 | 357,209 | | 2020 | 340,428 | | 2019 | 323,982 | | 2018 | 308,056 | | 2017 | 293,073 | | 2016 | 278,572 | | 2015 | 264,722 | | 2014 | 251,233 | | 2013 | 238,228 | | 2012 | 226,048 | | 2011 | 214,563 | | 2010 | 203,828 | | 2009 | 195,620 | | 2008 | 190,990 | | 2007 | 189,381 | | 2006 | 189,988 | | 2005 | 191,421 | | 2004 | 191,794 | | 2003 | 190,095 | | 2002 | 186,503 | | 2001 | 181,843 | | 2000 | 177,575 | | 1999 | 173,795 | | 1998 | 170,291 | | 1997 | 166,970 | | 1996 | 163,456 | | 1995 | 159,517 | | 1994 | 155,413 | | 1993 | 151,298 | | 1992 | 147,121 | | 1991 | 143,085 | | 1990 | 139,241 | | 1989 | 135,466 | | 1988 | 131,690 | | 1987 | 127,942 | | 1986 | 124,474 | | 1985 | 121,189 | | 1984 | 117,898 | | 1983 | 114,750 | | 1982 | 111,732 | | 1981 | 108,816 | | 1980 | 106,005 | | 1979 | 103,311 | | 1978 | 100,726 | | 1977 | 98,245 | | 1976 | 95,863 | | 1975 | 93,580 |
|