Year	Number
2005-01-01	9
2006-01-01	17
2007-01-01	23
2008-01-01	28
2009-01-01	44
2010-01-01	30
2011-01-01	31
2012-01-01	61
2013-01-01	66
2014-01-01	76
2015-01-01	83