Year	Number of Firms
1992-01-01	9
1997-01-01	6
2002-01-01	18
2003-01-01	13
2004-01-01	16
2005-01-01	19
2006-01-01	13
2007-01-01	13
2008-01-01	16
2009-01-01	14
2010-01-01	11
2011-01-01	24
2012-01-01	10
2013-01-01	10
2014-01-01	11
2015-01-01	8
2016-01-01	6