| Year | Value | | 2023 | 1,444,357 | | 2022 | 1,416,176 | | 2021 | 1,393,580 | | 2020 | 1,365,807 | | 2019 | 1,347,829 | | 2018 | 1,326,229 | | 2017 | 1,298,953 | | 2016 | 1,254,621 | | 2015 | 1,203,444 | | 2014 | 1,178,252 | | 2013 | 1,141,152 | | 2012 | 1,132,630 | | 2011 | 1,122,528 | | 2010 | 1,103,766 | | 2009 | 1,092,525 | | 2008 | 1,079,265 | | 2007 | 1,063,451 | | 2006 | 1,043,095 | | 2005 | 1,017,740 | | 2004 | 985,585 | | 2003 | 959,422 | | 2002 | 932,783 | | 2001 | 903,169 | | 2000 | 881,968 | | 1999 | 872,602 | | 1998 | 860,922 | | 1997 | 853,015 | | 1996 | 842,770 | | 1995 | 809,996 | | 1994 | 787,268 | | 1993 | 760,950 | | 1992 | 753,764 | | 1991 | 748,476 |
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