| Year | Value | | 2023 | 4,471,289 | | 2022 | 4,319,134 | | 2021 | 4,172,935 | | 2020 | 4,036,748 | | 2019 | 3,949,889 | | 2018 | 3,899,717 | | 2017 | 4,064,670 | | 2016 | 4,347,111 | | 2015 | 4,474,603 | | 2014 | 4,553,193 | | 2013 | 4,569,432 | | 2012 | 4,403,391 | | 2011 | 4,197,824 | | 2010 | 3,937,928 | | 2009 | 3,700,563 | | 2008 | 3,507,313 | | 2007 | 3,307,335 | | 2006 | 3,114,043 | | 2005 | 2,935,072 | | 2004 | 2,773,355 | | 2003 | 2,637,516 | | 2002 | 2,526,702 | | 2001 | 2,421,316 | | 2000 | 2,312,000 | | 1999 | 2,206,892 | | 1998 | 2,139,999 | | 1997 | 2,094,150 | | 1996 | 2,045,651 | | 1995 | 2,007,611 | | 1994 | 1,955,588 | | 1993 | 1,919,159 | | 1992 | 1,910,168 | | 1991 | 1,886,906 |
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