Year	Number of Firms
1992-01-01	2
1997-01-01	8
2002-01-01	8
2003-01-01	6
2004-01-01	9
2005-01-01	7
2006-01-01	12
2007-01-01	17
2008-01-01	22
2009-01-01	16
2010-01-01	13
2011-01-01	27
2012-01-01	27
2013-01-01	25
2014-01-01	26
2015-01-01	25
2016-01-01	34