Year	Number of Firms
1992-01-01	5
1997-01-01	9
2002-01-01	2
2003-01-01	4
2004-01-01	7
2005-01-01	6
2006-01-01	5
2007-01-01	15
2008-01-01	14
2009-01-01	17
2010-01-01	27
2011-01-01	23
2012-01-01	22
2013-01-01	25
2014-01-01	30
2015-01-01	26
2016-01-01	30