| Year | Value | | 2023 | 4,936,209 | | 2022 | 4,983,931 | | 2021 | 4,920,977 | | 2020 | 4,724,407 | | 2019 | 4,748,584 | | 2018 | 4,720,978 | | 2017 | 4,688,293 | | 2016 | 4,651,601 | | 2015 | 4,587,119 | | 2014 | 4,508,047 | | 2013 | 4,393,129 | | 2012 | 4,358,321 | | 2011 | 4,310,224 | | 2010 | 4,298,779 | | 2009 | 4,265,167 | | 2008 | 4,275,905 | | 2007 | 4,306,927 | | 2006 | 4,323,154 | | 2005 | 4,272,899 | | 2004 | 4,203,079 | | 2003 | 4,227,774 | | 2002 | 4,157,742 | | 2001 | 4,152,274 | | 2000 | 4,187,699 | | 1999 | 4,159,391 | | 1998 | 4,078,351 | | 1997 | 4,011,908 | | 1996 | 4,065,883 | | 1995 | 4,150,987 | | 1994 | 4,221,894 | | 1993 | 4,346,258 | | 1992 | 4,501,618 | | 1991 | 4,484,401 |
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