Year | Value | 2023 | 15,836,683 | 2022 | 15,772,130 | 2021 | 15,453,092 | 2020 | 15,312,602 | 2019 | 15,529,009 | 2018 | 15,433,647 | 2017 | 15,283,296 | 2016 | 15,129,331 | 2015 | 15,038,607 | 2014 | 14,892,585 | 2013 | 14,763,271 | 2012 | 14,631,733 | 2011 | 14,498,304 | 2010 | 14,356,047 | 2009 | 14,200,502 | 2008 | 14,041,864 | 2007 | 13,918,220 | 2006 | 13,752,011 | 2005 | 13,585,222 | 2004 | 13,460,245 | 2003 | 13,317,729 | 2002 | 13,186,185 | 2001 | 13,062,752 | 2000 | 12,956,803 | 1999 | 12,821,238 | 1998 | 12,729,427 | 1997 | 12,576,064 | 1996 | 12,370,248 | 1995 | 12,189,870 | 1994 | 11,983,966 | 1993 | 11,776,956 | 1992 | 11,552,895 | 1991 | 11,309,511 |
|