Year	Number of Firms
2005-01-01	9
2006-01-01	16
2007-01-01	16
2008-01-01	29
2009-01-01	42
2010-01-01	60
2011-01-01	12
2012-01-01	33
2013-01-01	48
2014-01-01	33
2015-01-01	9
2016-01-01	11