Year | Value | 2023 | 24,294,250 | 2022 | 23,907,745 | 2021 | 24,004,499 | 2020 | 22,741,626 | 2019 | 22,499,305 | 2018 | 21,920,532 | 2017 | 21,305,279 | 2016 | 19,011,128 | 2015 | 18,346,591 | 2014 | 17,704,898 | 2013 | 17,073,298 | 2012 | 16,457,640 | 2011 | 15,876,871 | 2010 | 15,328,140 | 2009 | 14,809,727 | 2008 | 14,341,176 | 2007 | 13,891,472 | 2006 | 13,437,714 | 2005 | 13,100,844 | 2004 | 12,695,964 | 2003 | 12,288,621 | 2002 | 11,882,385 | 2001 | 11,475,716 | 2000 | 11,076,144 | 1999 | 10,652,014 | 1998 | 10,234,771 | 1997 | 9,833,778 | 1996 | 9,464,112 | 1995 | 9,123,179 | 1994 | 8,774,220 | 1993 | 8,446,666 | 1992 | 8,143,276 | 1991 | 7,871,876 |
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