Year	Number
2004-01-01	128
2005-01-01	2902
2006-01-01	7804
2007-01-01	17194
2008-01-01	28452
2009-01-01	32830
2010-01-01	38635
2011-01-01	39218
2012-01-01	42849
2013-01-01	31663
2014-01-01	28759
2015-01-01	60203
2016-01-01	60879