| Year | Value | | 2023 | 3,517,928 | | 2022 | 3,450,894 | | 2021 | 3,413,790 | | 2020 | 3,326,557 | | 2019 | 3,420,892 | | 2018 | 3,386,497 | | 2017 | 3,351,334 | | 2016 | 3,314,735 | | 2015 | 3,296,246 | | 2014 | 3,210,701 | | 2013 | 3,151,375 | | 2012 | 3,087,970 | | 2011 | 3,034,411 | | 2010 | 2,996,056 | | 2009 | 3,008,534 | | 2008 | 3,020,903 | | 2007 | 2,986,124 | | 2006 | 2,955,295 | | 2005 | 2,920,785 | | 2004 | 2,876,933 | | 2003 | 2,820,983 | | 2002 | 2,776,936 | | 2001 | 2,740,944 | | 2000 | 2,712,281 | | 1999 | 2,675,269 | | 1998 | 2,650,866 | | 1997 | 2,618,767 | | 1996 | 2,582,661 | | 1995 | 2,551,923 | | 1994 | 2,513,854 | | 1993 | 2,477,806 | | 1992 | 2,449,488 | | 1991 | 2,418,507 |
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