| Year | Value | | 2022 | 9,380 | | 2021 | 9,220 | | 2020 | 8,970 | | 2019 | 8,564 | | 2018 | 8,070 | | 2017 | 7,564 | | 2016 | 7,115 | | 2015 | 6,682 | | 2014 | 6,273 | | 2013 | 5,877 | | 2012 | 5,488 | | 2011 | 5,120 | | 2010 | 4,781 | | 2009 | 4,467 | | 2008 | 4,186 | | 2007 | 3,939 | | 2006 | 3,723 | | 2005 | 3,526 | | 2004 | 3,346 | | 2003 | 3,180 | | 2002 | 3,030 | | 2001 | 2,904 | | 2000 | 2,799 | | 1999 | 2,702 | | 1998 | 2,613 | | 1997 | 2,539 | | 1996 | 2,433 | | 1995 | 2,341 | | 1994 | 2,261 | | 1993 | 2,192 | | 1992 | 2,130 | | 1991 | 2,076 | | 1990 | 2,021 |
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