Year	Number
2004-01-01	6396
2005-01-01	7546
2006-01-01	8978
2007-01-01	7960
2008-01-01	4459
2009-01-01	5161
2010-01-01	5972
2011-01-01	9753
2012-01-01	12706
2013-01-01	83960
2014-01-01	67039
2015-01-01	100395
2016-01-01	92534