| Year | Value | | 2022 | 8,621,147 | | 2021 | 8,501,519 | | 2020 | 8,260,758 | | 2019 | 8,453,887 | | 2018 | 8,431,365 | | 2017 | 8,621,771 | | 2016 | 9,094,447 | | 2015 | 9,155,664 | | 2014 | 9,344,977 | | 2013 | 9,198,717 | | 2012 | 9,137,894 | | 2011 | 10,182,023 | | 2010 | 9,915,348 | | 2009 | 9,912,339 | | 2008 | 9,618,767 | | 2007 | 8,452,642 | | 2006 | 6,643,722 | | 2005 | 5,510,690 | | 2004 | 4,729,629 |
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