Year	Number of Firms
2002-01-01	5
2003-01-01	6
2004-01-01	6
2005-01-01	7
2006-01-01	6
2007-01-01	4
2008-01-01	6
2009-01-01	20
2010-01-01	33
2011-01-01	27
2012-01-01	21
2013-01-01	6
2014-01-01	9
2015-01-01	4
2016-01-01	5