| Year | Value | | 2024 | 847,703 | | 2023 | 821,278 | | 2022 | 802,715 | | 2021 | 790,231 | | 2020 | 769,950 | | 2019 | 744,162 | | 2018 | 720,737 | | 2017 | 697,982 | | 2016 | 676,300 | | 2015 | 656,886 | | 2014 | 634,041 | | 2013 | 608,886 | | 2012 | 586,061 | | 2011 | 560,463 | | 2010 | 537,793 | | 2009 | 519,910 | | 2008 | 499,125 | | 2007 | 486,341 | | 2006 | 475,555 | | 2005 | 455,427 | | 2004 | 439,151 | | 2003 | 423,571 | | 2002 | 398,559 | | 2001 | 378,847 | | 2000 | 377,019 | | 1999 | 373,616 | | 1998 | 361,180 | | 1997 | 349,265 | | 1996 | 337,744 | | 1995 | 325,355 | | 1994 | 311,825 | | 1993 | 291,147 | | 1992 | 263,952 | | 1991 | 248,667 | | 1990 | 250,868 | | 1989 | 251,895 | | 1988 | 245,272 | | 1987 | 240,480 | | 1986 | 238,020 | | 1985 | 234,835 | | 1984 | 227,167 | | 1983 | 220,437 | | 1982 | 222,376 | | 1981 | 243,085 | | 1980 | 270,028 | | 1979 | 281,582 | | 1978 | 281,818 | | 1977 | 276,931 | | 1976 | 271,795 | | 1975 | 266,822 |
|