| Year | Value | | 2023 | 7,711,890 | | 2022 | 7,478,147 | | 2021 | 7,275,863 | | 2020 | 7,010,770 | | 2019 | 6,877,105 | | 2018 | 6,672,514 | | 2017 | 6,473,375 | | 2016 | 6,278,154 | | 2015 | 6,087,610 | | 2014 | 5,903,174 | | 2013 | 5,718,860 | | 2012 | 5,536,072 | | 2011 | 5,356,432 | | 2010 | 5,181,176 | | 2009 | 5,011,351 | | 2008 | 4,847,546 | | 2007 | 4,689,606 | | 2006 | 4,537,271 | | 2005 | 4,390,668 | | 2004 | 4,249,156 | | 2003 | 4,113,727 | | 2002 | 3,983,974 | | 2001 | 3,861,172 | | 2000 | 3,740,883 | | 1999 | 3,625,123 | | 1998 | 3,512,495 | | 1997 | 3,402,464 | | 1996 | 3,294,900 | | 1995 | 3,189,692 | | 1994 | 3,087,859 | | 1993 | 2,988,380 | | 1992 | 2,891,957 | | 1991 | 2,798,770 |
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