Year	Number of Firms
2003-01-01	2
2004-01-01	7
2005-01-01	3
2006-01-01	2
2007-01-01	7
2008-01-01	8
2009-01-01	9
2010-01-01	10
2011-01-01	13
2012-01-01	13
2013-01-01	7
2014-01-01	10
2015-01-01	9
2016-01-01	6