Year	Number of Firms
1992-01-01	5
1997-01-01	19
2002-01-01	14
2003-01-01	13
2004-01-01	17
2005-01-01	13
2006-01-01	17
2007-01-01	16
2008-01-01	15
2009-01-01	16
2010-01-01	14
2011-01-01	10
2012-01-01	10
2013-01-01	10
2014-01-01	9
2015-01-01	11
2016-01-01	12