Year | Value | 2023 | 19,239,884 | 2022 | 18,877,759 | 2021 | 18,341,553 | 2020 | 18,045,465 | 2019 | 18,253,603 | 2018 | 17,926,476 | 2017 | 17,596,126 | 2016 | 17,202,565 | 2015 | 16,796,391 | 2014 | 16,293,134 | 2013 | 15,866,400 | 2012 | 15,418,971 | 2011 | 15,103,159 | 2010 | 14,818,795 | 2009 | 14,567,716 | 2008 | 14,189,902 | 2007 | 13,710,261 | 2006 | 13,232,653 | 2005 | 12,791,443 | 2004 | 12,479,635 | 2003 | 12,229,875 | 2002 | 11,926,056 | 2001 | 11,689,549 | 2000 | 11,464,779 | 1999 | 11,227,095 | 1998 | 10,994,264 | 1997 | 10,776,872 | 1996 | 10,575,915 | 1995 | 10,395,770 | 1994 | 10,231,612 | 1993 | 10,060,251 | 1992 | 9,922,719 | 1991 | 9,786,550 |
|