Year	Number
2005-01-01	102
2006-01-01	116
2007-01-01	155
2008-01-01	240
2009-01-01	339
2010-01-01	415
2011-01-01	460
2012-01-01	483
2013-01-01	496
2014-01-01	498
2015-01-01	540
2016-01-01	522