| Year | Value | | 2023 | 4,978,943 | | 2022 | 4,968,223 | | 2021 | 4,981,500 | | 2020 | 4,979,813 | | 2019 | 4,971,006 | | 2018 | 4,956,328 | | 2017 | 4,920,490 | | 2016 | 4,887,055 | | 2015 | 4,805,361 | | 2014 | 4,733,088 | | 2013 | 4,648,458 | | 2012 | 4,590,579 | | 2011 | 4,532,800 | | 2010 | 4,447,671 | | 2009 | 4,477,063 | | 2008 | 4,410,392 | | 2007 | 4,307,257 | | 2006 | 4,239,193 | | 2005 | 4,176,950 | | 2004 | 4,156,364 | | 2003 | 4,152,300 | | 2002 | 4,103,899 | | 2001 | 4,063,211 | | 2000 | 3,998,257 | | 1999 | 3,997,007 | | 1998 | 3,984,074 | | 1997 | 3,933,090 | | 1996 | 3,930,223 | | 1995 | 3,720,552 | | 1994 | 3,694,903 | | 1993 | 3,723,681 | | 1992 | 3,679,073 | | 1991 | 3,651,650 |
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