Year	Number of Firms
2004-01-01	3
2005-01-01	16
2006-01-01	26
2007-01-01	33
2008-01-01	37
2009-01-01	55
2010-01-01	60
2011-01-01	18
2012-01-01	43
2013-01-01	64
2014-01-01	43
2015-01-01	18
2016-01-01	12