| Year | Value | | 2023 | 965,500 | | 2022 | 969,623 | | 2021 | 956,869 | | 2020 | 988,585 | | 2019 | 988,868 | | 2018 | 1,000,243 | | 2017 | 999,649 | | 2016 | 1,004,171 | | 2015 | 1,009,906 | | 2014 | 1,006,638 | | 2013 | 1,021,195 | | 2012 | 1,039,903 | | 2011 | 1,033,395 | | 2010 | 1,059,977 | | 2009 | 1,105,823 | | 2008 | 1,150,923 | | 2007 | 1,137,565 | | 2006 | 1,121,857 | | 2005 | 1,094,452 | | 2004 | 1,101,406 | | 2003 | 1,101,201 | | 2002 | 1,121,199 | | 2001 | 1,098,210 | | 2000 | 1,095,654 | | 1999 | 1,127,978 | | 1998 | 1,153,912 | | 1997 | 1,167,637 | | 1996 | 1,173,320 | | 1995 | 1,183,283 | | 1994 | 1,195,914 | | 1993 | 1,216,036 | | 1992 | 1,229,558 | | 1991 | 1,220,073 |
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