Year	Number of Firms
2005-01-01	1
2006-01-01	2
2007-01-01	2
2008-01-01	9
2009-01-01	6
2010-01-01	15
2011-01-01	1
2012-01-01	10
2013-01-01	5
2014-01-01	6
2015-01-01	2
2016-01-01	3