| Year | Value | | 2023 | 6,114,198 | | 2022 | 5,912,237 | | 2021 | 5,664,325 | | 2020 | 5,705,374 | | 2019 | 5,684,980 | | 2018 | 5,663,066 | | 2017 | 5,306,478 | | 2016 | 5,103,906 | | 2015 | 4,978,794 | | 2014 | 5,186,538 | | 2013 | 4,929,362 | | 2012 | 4,776,939 | | 2011 | 4,902,372 | | 2010 | 4,799,179 | | 2009 | 4,696,931 | | 2008 | 4,570,941 | | 2007 | 4,416,875 | | 2006 | 4,417,572 | | 2005 | 4,151,820 | | 2004 | 4,055,936 | | 2003 | 3,963,074 | | 2002 | 3,873,483 | | 2001 | 3,787,827 | | 2000 | 3,704,483 | | 1999 | 3,694,954 | | 1998 | 3,592,888 | | 1997 | 3,493,482 | | 1996 | 3,402,631 | | 1995 | 3,316,045 | | 1994 | 3,229,136 | | 1993 | 3,142,806 | | 1992 | 3,061,304 | | 1991 | 2,994,786 |
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