Year	Number of Firms
1992-01-01	11
1997-01-01	12
2002-01-01	9
2003-01-01	8
2004-01-01	15
2005-01-01	15
2006-01-01	11
2007-01-01	15
2008-01-01	12
2009-01-01	16
2010-01-01	12
2011-01-01	16
2012-01-01	17
2013-01-01	11
2014-01-01	9
2015-01-01	4
2016-01-01	2