Year | Value | 2023 | 31,219,073 | 2022 | 30,096,296 | 2021 | 28,746,124 | 2020 | 27,839,215 | 2019 | 27,288,953 | 2018 | 26,515,547 | 2017 | 25,739,955 | 2016 | 24,960,918 | 2015 | 24,200,892 | 2014 | 23,506,979 | 2013 | 22,926,545 | 2012 | 22,376,520 | 2011 | 21,865,045 | 2010 | 21,393,289 | 2009 | 21,001,337 | 2008 | 20,635,599 | 2007 | 20,225,225 | 2006 | 19,802,584 | 2005 | 19,204,746 | 2004 | 18,621,845 | 2003 | 18,051,900 | 2002 | 17,496,682 | 2001 | 16,955,479 | 2000 | 16,486,247 | 1999 | 16,008,466 | 1998 | 15,563,775 | 1997 | 15,129,850 | 1996 | 14,765,872 | 1995 | 14,419,640 | 1994 | 13,928,992 | 1993 | 13,375,429 | 1992 | 12,919,035 | 1991 | 12,543,625 |
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