| Year | Value | | 2022 | 403,993 | | 2021 | 397,393 | | 2020 | 466,000 | | 2019 | 425,507 | | 2018 | 388,707 | | 2017 | 353,540 | | 2016 | 360,200 | | 2015 | 311,175 | | 2014 | 314,842 | | 2013 | 287,000 | | 2012 | 300,000 | | 2011 | 298,790 | | 2010 | 428,377 | | 2009 | 358,812 | | 2008 | 358,050 | | 2007 | 373,999 | | 2006 | 252,987 | | 2005 | 227,771 | | 2004 | 186,007 | | 2003 | 122,228 | | 2002 | 121,759 | | 2001 | 60,555 | | 2000 | 31,524 | | 1999 | 15,911 | | 1998 | 8,072 | | 1997 | 6,200 | | 1996 | 4,948 | | 1995 | 4,100 | | 1993 | 2,401 | | 1992 | 2,600 | | 1991 | 2,020 | | 1990 | 1,922 |
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