Year Number 2004-01-01 59 2005-01-01 58 2007-01-01 655 2008-01-01 676 2009-01-01 637 2010-01-01 680 2011-01-01 696 2012-01-01 699 2013-01-01 686 2014-01-01 688 2015-01-01 696 2016-01-01 705