Year Number 2004-01-01 333 2005-01-01 369 2006-01-01 416 2007-01-01 423 2008-01-01 454 2009-01-01 491 2010-01-01 513 2011-01-01 546 2012-01-01 565 2013-01-01 586 2014-01-01 648 2015-01-01 669 2016-01-01 705