| Year | Value | | 2020 | 1,955,514 | | 2019 | 1,962,447 | | 2018 | 1,966,749 | | 2017 | 1,971,690 | | 2016 | 1,982,769 | | 2015 | 1,985,758 | | 2014 | 1,977,176 | | 2013 | 1,979,289 | | 2012 | 1,978,584 | | 2011 | 1,977,165 | | 2010 | 1,964,426 | | 2009 | 1,976,639 | | 2008 | 1,925,582 | | 2007 | 1,898,994 | | 2006 | 1,828,081 | | 2005 | 1,759,118 | | 2004 | 1,686,754 | | 2003 | 1,659,965 | | 2002 | 1,628,725 | | 2001 | 1,608,929 | | 2000 | 1,601,677 | | 1999 | 1,588,662 | | 1998 | 1,586,143 | | 1997 | 1,572,865 | | 1996 | 1,568,422 | | 1995 | 1,569,008 | | 1994 | 1,562,342 | | 1993 | 1,551,015 | | 1992 | 1,537,615 | | 1991 | 1,524,708 | | 1990 | 1,514,213 |
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