| Year | Value | | 2023 | 186,504 | | 2022 | 184,732 | | 2021 | 181,778 | | 2020 | 173,411 | | 2019 | 163,807 | | 2018 | 145,127 | | 2017 | 142,472 | | 2016 | 140,042 | | 2015 | 137,848 | | 2014 | 132,932 | | 2013 | 140,943 | | 2012 | 149,962 | | 2011 | 145,544 | | 2010 | 144,924 | | 2009 | 146,991 | | 2008 | 142,818 | | 2007 | 138,507 | | 2006 | 134,086 | | 2005 | 129,410 | | 2004 | 123,663 | | 2003 | 117,898 | | 2002 | 112,497 | | 2001 | 107,503 | | 2000 | 102,913 | | 1999 | 98,778 | | 1998 | 94,786 | | 1997 | 91,104 | | 1996 | 87,864 | | 1995 | 84,858 | | 1994 | 83,250 | | 1993 | 82,658 | | 1992 | 86,141 | | 1991 | 89,204 |
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