Year	Number of Firms
1992-01-01	1
1997-01-01	4
2002-01-01	3
2003-01-01	2
2004-01-01	5
2005-01-01	5
2006-01-01	5
2007-01-01	7
2008-01-01	15
2009-01-01	9
2010-01-01	12
2011-01-01	13
2012-01-01	18
2013-01-01	19
2014-01-01	16
2015-01-01	18
2016-01-01	13