| Year | Value | | 2023 | 5,806,355 | | 2022 | 5,602,330 | | 2021 | 5,322,620 | | 2020 | 5,151,257 | | 2019 | 5,026,862 | | 2018 | 4,858,714 | | 2017 | 4,725,553 | | 2016 | 4,600,694 | | 2015 | 4,495,591 | | 2014 | 4,393,752 | | 2013 | 4,266,330 | | 2012 | 4,144,051 | | 2011 | 4,030,272 | | 2010 | 3,921,726 | | 2009 | 3,825,049 | | 2008 | 3,720,190 | | 2007 | 3,620,713 | | 2006 | 3,531,459 | | 2005 | 3,437,328 | | 2004 | 3,318,111 | | 2003 | 3,175,485 | | 2002 | 3,063,495 | | 2001 | 2,987,408 | | 2000 | 2,922,609 | | 1999 | 2,852,725 | | 1998 | 2,780,394 | | 1997 | 2,719,238 | | 1996 | 2,665,029 | | 1995 | 2,561,717 | | 1994 | 2,455,715 | | 1993 | 2,446,150 | | 1992 | 2,419,061 | | 1991 | 2,309,235 |
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