Year Number 2004-01-01 4065327.00 2005-01-01 5586651.00 2006-01-01 6917894.00 2007-01-01 7424410.00 2008-01-01 7686112.00 2009-01-01 7990279.00 2010-01-01 8435185.00 2011-01-01 8502228.00 2012-01-01 8891643.00 2013-01-01 9151409.24 2014-01-01 9248969.00 2015-01-01 9452182.00 2016-01-01 9180924.00