| Year | Value | | 2023 | 7,521,874 | | 2022 | 7,497,357 | | 2021 | 7,364,900 | | 2020 | 7,285,566 | | 2019 | 7,414,075 | | 2018 | 7,379,862 | | 2017 | 7,306,280 | | 2016 | 7,233,696 | | 2015 | 7,211,666 | | 2014 | 7,148,816 | | 2013 | 7,098,652 | | 2012 | 7,046,662 | | 2011 | 6,993,620 | | 2010 | 6,933,885 | | 2009 | 6,863,107 | | 2008 | 6,788,384 | | 2007 | 6,740,193 | | 2006 | 6,660,251 | | 2005 | 6,580,228 | | 2004 | 6,531,771 | | 2003 | 6,470,594 | | 2002 | 6,414,520 | | 2001 | 6,361,513 | | 2000 | 6,323,148 | | 1999 | 6,262,522 | | 1998 | 6,236,303 | | 1997 | 6,162,684 | | 1996 | 6,050,012 | | 1995 | 5,957,656 | | 1994 | 5,850,469 | | 1993 | 5,747,191 | | 1992 | 5,631,791 | | 1991 | 5,504,825 |
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