Year | Value | 2023 | 15,586,515 | 2022 | 15,446,111 | 2021 | 15,269,324 | 2020 | 14,732,737 | 2019 | 14,848,697 | 2018 | 14,824,677 | 2017 | 14,716,479 | 2016 | 14,743,130 | 2015 | 14,688,911 | 2014 | 14,621,967 | 2013 | 14,570,896 | 2012 | 14,430,050 | 2011 | 14,293,003 | 2010 | 14,251,627 | 2009 | 14,178,647 | 2008 | 13,995,806 | 2007 | 13,863,184 | 2006 | 13,672,911 | 2005 | 13,549,507 | 2004 | 13,373,535 | 2003 | 13,309,820 | 2002 | 12,875,857 | 2001 | 12,715,942 | 2000 | 12,663,567 | 1999 | 12,521,484 | 1998 | 12,357,232 | 1997 | 12,208,707 | 1996 | 12,213,444 | 1995 | 12,039,152 | 1994 | 11,901,590 | 1993 | 11,777,492 | 1992 | 11,586,259 | 1991 | 11,407,668 |
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