| Year | Value | | 2023 | 1,399,098 | | 2022 | 1,404,942 | | 2021 | 1,382,433 | | 2020 | 1,359,716 | | 2019 | 1,433,004 | | 2018 | 1,409,389 | | 2017 | 1,377,319 | | 2016 | 1,354,998 | | 2015 | 1,308,343 | | 2014 | 1,256,110 | | 2013 | 1,227,940 | | 2012 | 1,328,695 | | 2011 | 1,388,801 | | 2010 | 1,270,655 | | 2009 | 1,258,916 | | 2008 | 1,212,147 | | 2007 | 1,231,498 | | 2006 | 1,249,959 | | 2005 | 1,266,465 | | 2004 | 1,281,167 | | 2003 | 1,294,847 | | 2002 | 1,308,103 | | 2001 | 1,303,898 | | 2000 | 1,315,052 | | 1999 | 1,322,053 | | 1998 | 1,338,937 | | 1997 | 1,352,915 | | 1996 | 1,337,782 | | 1995 | 1,355,763 | | 1994 | 1,381,976 | | 1993 | 1,401,938 | | 1992 | 1,424,787 | | 1991 | 1,417,575 |
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