| Year | Value | | 2023 | 11,166,555 | | 2022 | 11,133,854 | | 2021 | 11,009,235 | | 2020 | 10,650,635 | | 2019 | 10,785,621 | | 2018 | 10,632,215 | | 2017 | 10,616,020 | | 2016 | 10,653,462 | | 2015 | 10,631,450 | | 2014 | 10,629,284 | | 2013 | 10,703,760 | | 2012 | 10,735,237 | | 2011 | 10,602,975 | | 2010 | 10,434,745 | | 2009 | 10,250,653 | | 2008 | 9,958,007 | | 2007 | 9,551,106 | | 2006 | 9,196,327 | | 2005 | 8,788,823 | | 2004 | 8,392,319 | | 2003 | 8,006,310 | | 2002 | 7,605,664 | | 2001 | 7,061,082 | | 2000 | 7,216,815 | | 1999 | 6,895,139 | | 1998 | 6,721,618 | | 1997 | 6,602,981 | | 1996 | 6,406,521 | | 1995 | 6,256,883 | | 1994 | 6,110,516 | | 1993 | 5,824,271 | | 1992 | 5,658,116 | | 1991 | 5,421,685 |
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