Year	Number of Firms
2002-01-01	6
2003-01-01	10
2004-01-01	9
2005-01-01	8
2006-01-01	15
2007-01-01	17
2008-01-01	11
2009-01-01	7
2010-01-01	17
2011-01-01	20
2012-01-01	20
2013-01-01	23
2014-01-01	25
2015-01-01	18
2016-01-01	11