Year	Number of Firms
1992-01-01	7
1997-01-01	5
2002-01-01	6
2003-01-01	6
2004-01-01	3
2005-01-01	11
2006-01-01	6
2007-01-01	8
2008-01-01	12
2009-01-01	17
2010-01-01	15
2011-01-01	22
2012-01-01	15
2013-01-01	16
2014-01-01	16
2015-01-01	19
2016-01-01	15