| Year | Value | | 2023 | 5,518,226 | | 2022 | 5,432,855 | | 2021 | 5,263,181 | | 2020 | 5,165,410 | | 2019 | 5,191,677 | | 2018 | 4,925,538 | | 2017 | 4,841,518 | | 2016 | 4,756,797 | | 2015 | 4,626,699 | | 2014 | 4,531,372 | | 2013 | 4,428,280 | | 2012 | 4,359,293 | | 2011 | 4,273,974 | | 2010 | 4,193,491 | | 2009 | 4,141,330 | | 2008 | 4,027,557 | | 2007 | 3,983,259 | | 2006 | 4,093,836 | | 2005 | 4,115,696 | | 2004 | 4,114,099 | | 2003 | 4,180,410 | | 2002 | 4,204,886 | | 2001 | 4,236,119 | | 2000 | 4,268,500 | | 1999 | 4,224,614 | | 1998 | 4,166,378 | | 1997 | 4,120,745 | | 1996 | 4,064,584 | | 1995 | 3,994,465 | | 1994 | 3,866,547 | | 1993 | 3,710,439 | | 1992 | 3,556,212 | | 1991 | 3,424,614 |
|