| Year | Value | | 2023 | 76,394 | | 2022 | 74,171 | | 2021 | 71,873 | | 2020 | 69,308 | | 2019 | 68,083 | | 2018 | 66,758 | | 2017 | 65,490 | | 2016 | 64,262 | | 2015 | 63,092 | | 2014 | 61,970 | | 2013 | 60,884 | | 2012 | 59,818 | | 2011 | 58,619 | | 2010 | 57,294 | | 2009 | 56,019 | | 2008 | 54,770 | | 2007 | 53,537 | | 2006 | 52,298 | | 2005 | 51,047 | | 2004 | 49,688 | | 2003 | 48,352 | | 2002 | 47,036 | | 2001 | 45,889 | | 2000 | 44,913 | | 1999 | 43,977 | | 1998 | 43,068 | | 1997 | 42,201 | | 1996 | 41,360 | | 1995 | 40,518 | | 1994 | 39,733 | | 1993 | 38,956 | | 1992 | 38,197 | | 1991 | 37,474 |
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