Year	Number of Firms
2002-01-01	1
2005-01-01	3
2006-01-01	5
2007-01-01	7
2008-01-01	9
2009-01-01	17
2010-01-01	14
2011-01-01	6
2012-01-01	9
2013-01-01	13
2014-01-01	13
2015-01-01	3
2016-01-01	2