Year	Number of Firms
1992-01-01	11
1997-01-01	7
2002-01-01	18
2003-01-01	14
2004-01-01	13
2005-01-01	13
2006-01-01	8
2007-01-01	16
2008-01-01	10
2009-01-01	9
2010-01-01	7
2011-01-01	9
2012-01-01	10
2013-01-01	4
2014-01-01	4
2015-01-01	10
2016-01-01	5