| Year | Value | | 2023 | 4,675,950 | | 2022 | 4,564,937 | | 2021 | 4,452,659 | | 2020 | 4,206,572 | | 2019 | 4,399,023 | | 2018 | 4,431,793 | | 2017 | 4,161,688 | | 2016 | 3,983,810 | | 2015 | 3,919,626 | | 2014 | 3,810,624 | | 2013 | 3,613,486 | | 2012 | 3,268,694 | | 2011 | 3,243,536 | | 2010 | 3,260,247 | | 2009 | 3,103,859 | | 2008 | 2,946,258 | | 2007 | 2,823,834 | | 2006 | 2,775,987 | | 2005 | 2,768,649 | | 2004 | 2,703,743 | | 2003 | 2,639,855 | | 2002 | 2,576,593 | | 2001 | 2,513,802 | | 2000 | 2,451,680 | | 1999 | 2,425,908 | | 1998 | 2,352,190 | | 1997 | 2,273,810 | | 1996 | 2,194,608 | | 1995 | 2,121,674 | | 1994 | 2,045,733 | | 1993 | 1,980,633 | | 1992 | 1,910,531 | | 1991 | 1,843,910 |
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