| Year | Value | | 2023 | 2,259,066 | | 2022 | 2,181,662 | | 2021 | 2,059,044 | | 2020 | 2,035,509 | | 2019 | 1,994,931 | | 2018 | 1,934,474 | | 2017 | 1,944,791 | | 2016 | 1,952,255 | | 2015 | 1,956,709 | | 2014 | 1,957,769 | | 2013 | 1,956,079 | | 2012 | 1,951,504 | | 2011 | 1,942,804 | | 2010 | 1,870,452 | | 2009 | 1,799,086 | | 2008 | 1,730,661 | | 2007 | 1,666,892 | | 2006 | 1,608,335 | | 2005 | 1,545,992 | | 2004 | 1,483,068 | | 2003 | 1,427,162 | | 2002 | 1,373,020 | | 2001 | 1,310,866 | | 2000 | 1,251,506 | | 1999 | 1,195,005 | | 1998 | 1,141,507 | | 1997 | 1,091,462 | | 1996 | 1,046,533 | | 1995 | 1,009,729 | | 1994 | 983,807 | | 1993 | 934,088 | | 1992 | 875,996 | | 1991 | 850,277 |
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