Year Number 2005-01-01 25 2006-01-01 250 2007-01-01 277 2008-01-01 250 2009-01-01 216 2010-01-01 213 2011-01-01 227 2012-01-01 395 2013-01-01 415 2014-01-01 427 2015-01-01 254 2016-01-01 245