| Year | Value | | 2021 | 27,881 | | 2020 | 280,622 | | 2019 | 1,421,313 | | 2018 | 1,234,455 | | 2017 | 1,172,201 | | 2016 | 1,168,609 | | 2015 | 1,150,003 | | 2014 | 1,061,148 | | 2013 | 1,139,784 | | 2012 | 1,044,170 | | 2011 | 1,312,935 | | 2010 | 1,263,270 | | 2009 | 999,375 | | 2008 | 1,075,754 | | 2007 | 1,017,028 | | 2006 | 1,041,478 | | 2005 | 977,516 | | 2004 | 1,079,578 | | 2003 | 956,133 | | 2002 | 1,035,795 | | 2001 | 1,007,542 | | 2000 | 863,547 | | 1999 | 808,000 | | 1998 | 876,800 | | 1997 | 876,800 | | 1996 | 856,900 | | 1995 | 916,200 | | 1994 | 769,400 | | 1993 | 604,100 | | 1992 | 410,000 | | 1991 | 307,000 | | 1990 | 307,000 | | 1989 | 300,000 | | 1988 | 279,000 | | 1987 | 247,000 | | 1986 | 206,600 | | 1985 | 198,900 | | 1984 | 184,400 |
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