Year | Value | 2021 | 32,970 | 2020 | 32,884.6 | 2019 | 32,885.9 | 2018 | 32,885.3 | 2017 | 32,890 | 2016 | 32,880 | 2015 | 32,880 | 2014 | 32,880 | 2013 | 32,880 | 2012 | 32,860 | 2011 | 32,850 | 2010 | 32,850 | 2009 | 32,890 | 2008 | 32,890 | 2007 | 32,890 | 2006 | 32,890 | 2005 | 32,890 | 2004 | 32,880 | 2003 | 32,870 | 2002 | 32,880 | 2001 | 32,880 | 2000 | 32,880 | 1999 | 32,900 | 1998 | 32,910 | 1997 | 32,920 | 1996 | 32,930 | 1995 | 32,930 | 1994 | 32,940 | 1993 | 32,950 | 1992 | 32,870 |
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