Year	Number of Firms
1992-01-01	9
1997-01-01	12
2002-01-01	10
2003-01-01	10
2004-01-01	15
2005-01-01	15
2006-01-01	27
2007-01-01	19
2008-01-01	17
2009-01-01	18
2010-01-01	18
2011-01-01	19
2012-01-01	15
2013-01-01	15
2014-01-01	16
2015-01-01	12
2016-01-01	16