Year | Value | 2023 | 38,483 | 2022 | 37,850 | 2021 | 36,740 | 2020 | 36,409 | 2019 | 36,419 | 2018 | 36,260 | 2017 | 36,317 | 2016 | 36,418 | 2015 | 36,573 | 2014 | 36,797 | 2013 | 37,036 | 2012 | 37,242 | 2011 | 37,363 | 2010 | 37,347 | 2009 | 37,294 | 2008 | 37,248 | 2007 | 37,162 | 2006 | 37,108 | 2005 | 37,109 | 2004 | 37,109 | 2003 | 37,096 | 2002 | 37,058 | 2001 | 36,965 | 2000 | 36,801 | 1999 | 36,563 | 1998 | 36,258 | 1997 | 35,896 | 1996 | 35,682 | 1995 | 35,673 | 1994 | 35,681 | 1993 | 34,939 | 1992 | 34,207 | 1991 | 33,470 |
|