Year	Number of Firms
2003-01-01	3
2004-01-01	1
2006-01-01	2
2007-01-01	3
2008-01-01	2
2009-01-01	3
2010-01-01	7
2012-01-01	4
2013-01-01	3
2014-01-01	4
2015-01-01	2