| Year | Value | | 2023 | 3,326,862 | | 2022 | 3,372,773 | | 2021 | 3,396,557 | | 2020 | 3,218,733 | | 2019 | 3,272,110 | | 2018 | 3,275,646 | | 2017 | 3,256,850 | | 2016 | 3,229,602 | | 2015 | 3,135,688 | | 2014 | 3,171,544 | | 2013 | 3,157,875 | | 2012 | 3,108,558 | | 2011 | 3,091,745 | | 2010 | 3,103,533 | | 2009 | 3,190,566 | | 2008 | 3,311,451 | | 2007 | 3,362,384 | | 2006 | 3,361,676 | | 2005 | 3,381,701 | | 2004 | 3,404,868 | | 2003 | 3,433,498 | | 2002 | 3,452,391 | | 2001 | 3,470,127 | | 2000 | 3,490,082 | | 1999 | 3,509,807 | | 1998 | 3,484,477 | | 1997 | 3,500,924 | | 1996 | 3,532,652 | | 1995 | 3,559,752 | | 1994 | 3,628,667 | | 1993 | 3,626,066 | | 1992 | 3,600,830 | | 1991 | 3,575,626 |
|