| Year | Value | | 2024 | 193,323 | | 2023 | 185,953 | | 2022 | 180,201 | | 2021 | 176,975 | | 2020 | 173,338 | | 2019 | 168,031 | | 2018 | 162,536 | | 2017 | 157,901 | | 2016 | 154,670 | | 2015 | 152,731 | | 2014 | 149,943 | | 2013 | 146,335 | | 2012 | 142,619 | | 2011 | 137,055 | | 2010 | 131,828 | | 2009 | 127,814 | | 2008 | 123,334 | | 2007 | 121,132 | | 2006 | 119,534 | | 2005 | 115,413 | | 2004 | 112,032 | | 2003 | 108,566 | | 2002 | 102,444 | | 2001 | 97,658 | | 2000 | 97,615 | | 1999 | 97,256 | | 1998 | 94,643 | | 1997 | 92,174 | | 1996 | 89,608 | | 1995 | 86,739 | | 1994 | 83,058 | | 1993 | 76,570 | | 1992 | 68,105 | | 1991 | 62,898 | | 1990 | 62,088 | | 1989 | 61,388 | | 1988 | 59,783 | | 1987 | 59,597 | | 1986 | 60,526 | | 1985 | 61,731 | | 1984 | 62,035 | | 1983 | 61,844 | | 1982 | 63,315 | | 1981 | 69,752 | | 1980 | 77,704 | | 1979 | 81,272 | | 1978 | 81,505 | | 1977 | 80,153 | | 1976 | 78,805 | | 1975 | 77,676 |
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