Year	Number
2004-01-01	66800
2005-01-01	78771
2006-01-01	103031
2007-01-01	245284
2008-01-01	164028
2009-01-01	116977
2010-01-01	78947
2011-01-01	47973
2012-01-01	44806
2013-01-01	40258
2014-01-01	31479
2015-01-01	26462
2016-01-01	41051
2017-01-01	21722