| Year | Value | | 2023 | 234,437 | | 2022 | 228,765 | | 2021 | 222,655 | | 2020 | 216,486 | | 2019 | 213,692 | | 2018 | 209,430 | | 2017 | 204,998 | | 2016 | 200,128 | | 2015 | 194,996 | | 2014 | 189,967 | | 2013 | 183,361 | | 2012 | 176,900 | | 2011 | 170,591 | | 2010 | 164,449 | | 2009 | 158,474 | | 2008 | 152,664 | | 2007 | 147,019 | | 2006 | 141,521 | | 2005 | 136,156 | | 2004 | 130,933 | | 2003 | 127,488 | | 2002 | 125,084 | | 2001 | 123,384 | | 2000 | 121,705 | | 1999 | 120,076 | | 1998 | 117,832 | | 1997 | 115,064 | | 1996 | 112,406 | | 1995 | 109,882 | | 1994 | 107,523 | | 1993 | 105,282 | | 1992 | 103,056 | | 1991 | 100,655 |
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