Year	Number of Firms
2005-01-01	3
2006-01-01	3
2007-01-01	5
2008-01-01	12
2009-01-01	17
2010-01-01	19
2011-01-01	5
2012-01-01	19
2013-01-01	17
2014-01-01	17
2015-01-01	8
2016-01-01	7