| Year | Value | | 2022 | 75,252 | | 2021 | 73,319 | | 2020 | 71,513 | | 2019 | 69,724 | | 2018 | 67,895 | | 2017 | 66,011 | | 2016 | 64,315 | | 2015 | 62,277 | | 2014 | 60,117 | | 2013 | 57,805 | | 2012 | 55,360 | | 2011 | 52,870 | | 2010 | 50,395 | | 2009 | 47,930 | | 2008 | 45,514 | | 2007 | 43,173 | | 2006 | 41,030 | | 2005 | 39,044 | | 2004 | 37,153 | | 2003 | 35,439 | | 2002 | 34,146 | | 2001 | 33,185 | | 2000 | 32,334 | | 1999 | 31,599 | | 1998 | 30,876 | | 1997 | 29,952 | | 1996 | 28,403 | | 1995 | 27,023 | | 1994 | 25,792 | | 1993 | 24,701 | | 1992 | 23,789 | | 1991 | 22,942 | | 1990 | 22,050 |
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