| Year | Value | | 2022 | 7,445,151 | | 2021 | 7,362,325 | | 2020 | 7,289,707 | | 2019 | 7,399,534 | | 2018 | 7,241,702 | | 2017 | 7,117,753 | | 2016 | 6,989,902 | | 2015 | 6,675,553 | | 2014 | 6,378,095 | | 2013 | 6,208,412 | | 2012 | 6,094,466 | | 2011 | 5,983,059 | | 2010 | 5,925,012 | | 2009 | 5,497,719 | | 2008 | 5,520,043 | | 2007 | 6,068,063 | | 2006 | 4,893,232 | | 2005 | 4,540,374 | | 2004 | 4,275,164 | | 2003 | 3,678,774 | | 2002 | 2,923,383 | | 2001 | 2,147,331 | | 2000 | 1,243,736 | | 1999 | 664,072 | | 1998 | 465,364 | | 1997 | 200,140 | | 1996 | 28,658 | | 1995 | 12,315 | | 1994 | 5,946 | | 1993 | 3,125 | | 1992 | 1,537 | | 1991 | 119 |
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