Year	Number of Firms
1992-01-01	3
1997-01-01	5
2002-01-01	4
2003-01-01	10
2004-01-01	7
2005-01-01	8
2006-01-01	13
2007-01-01	13
2008-01-01	24
2009-01-01	27
2010-01-01	26
2011-01-01	25
2012-01-01	32
2013-01-01	17
2014-01-01	20
2015-01-01	16
2016-01-01	19