| Year | Value | | 2024 | 1,025,889 | | 2023 | 973,839 | | 2022 | 922,477 | | 2021 | 875,310 | | 2020 | 831,749 | | 2019 | 788,885 | | 2018 | 749,160 | | 2017 | 713,384 | | 2016 | 679,400 | | 2015 | 647,767 | | 2014 | 617,427 | | 2013 | 588,098 | | 2012 | 560,009 | | 2011 | 532,366 | | 2010 | 505,299 | | 2009 | 479,023 | | 2008 | 453,589 | | 2007 | 429,070 | | 2006 | 405,906 | | 2005 | 384,402 | | 2004 | 365,512 | | 2003 | 349,105 | | 2002 | 333,678 | | 2001 | 318,869 | | 2000 | 304,544 | | 1999 | 290,690 | | 1998 | 277,461 | | 1997 | 265,037 | | 1996 | 253,398 | | 1995 | 242,221 | | 1994 | 233,700 | | 1993 | 229,353 | | 1992 | 228,419 | | 1991 | 229,964 | | 1990 | 232,323 | | 1989 | 232,996 | | 1988 | 230,903 | | 1987 | 226,556 | | 1986 | 221,320 | | 1985 | 216,717 | | 1984 | 212,523 | | 1983 | 208,830 | | 1982 | 205,477 | | 1981 | 201,959 | | 1980 | 198,075 | | 1979 | 194,097 | | 1978 | 190,094 | | 1977 | 185,996 | | 1976 | 181,995 | | 1975 | 178,194 |
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