| Year | Value | | 2023 | 4,744,700 | | 2022 | 4,587,188 | | 2021 | 4,464,823 | | 2020 | 4,268,530 | | 2019 | 4,177,056 | | 2018 | 4,019,810 | | 2017 | 3,868,648 | | 2016 | 3,723,944 | | 2015 | 3,584,490 | | 2014 | 3,450,038 | | 2013 | 3,336,357 | | 2012 | 3,242,922 | | 2011 | 3,156,885 | | 2010 | 3,065,927 | | 2009 | 2,967,823 | | 2008 | 2,873,597 | | 2007 | 2,782,329 | | 2006 | 2,693,975 | | 2005 | 2,608,504 | | 2004 | 2,525,710 | | 2003 | 2,446,557 | | 2002 | 2,373,451 | | 2001 | 2,308,714 | | 2000 | 2,246,439 | | 1999 | 2,179,208 | | 1998 | 2,100,611 | | 1997 | 2,023,498 | | 1996 | 1,941,054 | | 1995 | 1,858,297 | | 1994 | 1,774,348 | | 1993 | 1,692,622 | | 1992 | 1,613,786 | | 1991 | 1,539,302 |
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