Year	Number
2004-01-01	108716
2005-01-01	165863
2006-01-01	256153
2007-01-01	389578
2008-01-01	338748
2009-01-01	288298
2010-01-01	222479
2011-01-01	249053
2012-01-01	276044
2013-01-01	280128
2014-01-01	317394
2015-01-01	353007
2016-01-01	327629
2017-01-01	377324