Year	Number of Firms
1992-01-01	7
1997-01-01	12
2002-01-01	12
2003-01-01	12
2004-01-01	9
2005-01-01	13
2006-01-01	23
2007-01-01	20
2008-01-01	20
2009-01-01	22
2010-01-01	26
2011-01-01	26
2012-01-01	27
2013-01-01	37
2014-01-01	32
2015-01-01	34
2016-01-01	37