| Year | Value | | 2021 | 75,920 | | 2020 | 75,920 | | 2019 | 75,920 | | 2018 | 75,920 | | 2017 | 75,920 | | 2016 | 75,920 | | 2015 | 75,920 | | 2014 | 75,920 | | 2013 | 75,920 | | 2012 | 75,920 | | 2011 | 75,920 | | 2010 | 75,920 | | 2009 | 75,920 | | 2008 | 75,720 | | 2007 | 75,720 | | 2006 | 75,720 | | 2005 | 75,220 | | 2004 | 75,000 | | 2003 | 75,670 | | 2002 | 75,320 | | 2001 | 75,320 | | 2000 | 75,300 | | 1999 | 74,670 | | 1998 | 74,670 | | 1997 | 73,600 | | 1996 | 73,380 | | 1995 | 74,070 | | 1994 | 74,060 | | 1993 | 74,000 |
|