Year	Number of Firms
1992-01-01	7
1997-01-01	6
2002-01-01	2
2003-01-01	2
2004-01-01	7
2005-01-01	8
2006-01-01	9
2007-01-01	9
2008-01-01	12
2009-01-01	12
2010-01-01	17
2011-01-01	14
2012-01-01	17
2013-01-01	19
2014-01-01	20
2015-01-01	19
2016-01-01	19