| Year | Value | | 2023 | 4,284,462 | | 2022 | 4,111,021 | | 2021 | 3,918,054 | | 2020 | 3,773,095 | | 2019 | 3,667,834 | | 2018 | 3,529,945 | | 2017 | 3,397,299 | | 2016 | 3,268,158 | | 2015 | 3,141,869 | | 2014 | 3,022,577 | | 2013 | 3,014,161 | | 2012 | 2,999,975 | | 2011 | 2,982,672 | | 2010 | 2,880,054 | | 2009 | 2,783,437 | | 2008 | 2,692,866 | | 2007 | 2,607,513 | | 2006 | 2,526,964 | | 2005 | 2,450,618 | | 2004 | 2,377,500 | | 2003 | 2,307,987 | | 2002 | 2,241,155 | | 2001 | 2,176,327 | | 2000 | 2,113,112 | | 1999 | 2,050,931 | | 1998 | 1,990,104 | | 1997 | 1,931,123 | | 1996 | 1,873,741 | | 1995 | 1,815,493 | | 1994 | 1,757,713 | | 1993 | 1,703,399 | | 1992 | 1,652,039 | | 1991 | 1,603,135 |
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