| Year | Value | | 2024 | 291,970 | | 2023 | 289,754 | | 2022 | 286,793 | | 2021 | 282,852 | | 2020 | 278,112 | | 2019 | 272,651 | | 2018 | 266,405 | | 2017 | 259,461 | | 2016 | 251,969 | | 2015 | 243,694 | | 2014 | 234,624 | | 2013 | 225,138 | | 2012 | 215,779 | | 2011 | 206,951 | | 2010 | 199,322 | | 2009 | 193,567 | | 2008 | 189,424 | | 2007 | 186,250 | | 2006 | 183,838 | | 2005 | 182,055 | | 2004 | 180,576 | | 2003 | 179,345 | | 2002 | 178,898 | | 2001 | 178,770 | | 2000 | 177,893 | | 1999 | 176,303 | | 1998 | 174,106 | | 1997 | 171,137 | | 1996 | 167,127 | | 1995 | 162,037 | | 1994 | 156,299 | | 1993 | 150,414 | | 1992 | 144,612 | | 1991 | 139,095 | | 1990 | 133,981 | | 1989 | 129,069 | | 1988 | 124,181 | | 1987 | 119,404 | | 1986 | 114,867 | | 1985 | 110,574 | | 1984 | 106,900 | | 1983 | 103,823 | | 1982 | 100,748 | | 1981 | 97,383 | | 1980 | 93,913 | | 1979 | 90,236 | | 1978 | 86,354 | | 1977 | 82,859 | | 1976 | 79,752 | | 1975 | 76,700 |
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