| Year | Value | | 2023 | 75,095 | | 2022 | 72,938 | | 2021 | 69,441 | | 2020 | 66,519 | | 2019 | 67,183 | | 2018 | 65,372 | | 2017 | 63,357 | | 2016 | 62,098 | | 2015 | 59,223 | | 2014 | 56,402 | | 2013 | 53,609 | | 2012 | 51,343 | | 2011 | 49,138 | | 2010 | 46,983 | | 2009 | 44,816 | | 2008 | 42,670 | | 2007 | 40,622 | | 2006 | 38,664 | | 2005 | 36,801 | | 2004 | 35,027 | | 2003 | 33,321 | | 2002 | 31,686 | | 2001 | 30,122 | | 2000 | 28,593 | | 1999 | 27,062 | | 1998 | 25,838 | | 1997 | 24,082 | | 1996 | 22,184 | | 1995 | 20,528 | | 1994 | 19,106 | | 1993 | 18,664 | | 1992 | 17,979 | | 1991 | 17,090 |
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