| Year | Value | | 2023 | 844,793 | | 2022 | 804,800 | | 2021 | 766,154 | | 2020 | 733,029 | | 2019 | 704,117 | | 2018 | 679,552 | | 2017 | 663,778 | | 2016 | 650,809 | | 2015 | 640,079 | | 2014 | 632,953 | | 2013 | 625,534 | | 2012 | 619,078 | | 2011 | 615,704 | | 2010 | 614,756 | | 2009 | 617,421 | | 2008 | 621,992 | | 2007 | 611,113 | | 2006 | 587,394 | | 2005 | 552,431 | | 2004 | 515,203 | | 2003 | 478,757 | | 2002 | 445,295 | | 2001 | 415,964 | | 2000 | 391,118 | | 1999 | 370,645 | | 1998 | 354,012 | | 1997 | 340,437 | | 1996 | 328,792 | | 1995 | 317,885 | | 1994 | 307,016 | | 1993 | 296,394 | | 1992 | 286,506 | | 1991 | 277,602 | | 1990 | 269,898 | | 1989 | 263,442 | | 1988 | 258,085 | | 1987 | 253,594 | | 1986 | 249,584 | | 1985 | 245,527 | | 1984 | 241,114 | | 1983 | 236,248 | | 1982 | 230,993 | | 1981 | 225,496 | | 1980 | 219,545 | | 1979 | 213,381 | | 1978 | 207,288 | | 1977 | 201,199 | | 1976 | 195,322 | | 1975 | 189,635 | | 1974 | 183,643 |
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