Year	Number of Firms
1992-01-01	1
1997-01-01	4
2002-01-01	5
2003-01-01	7
2004-01-01	6
2005-01-01	8
2006-01-01	13
2007-01-01	15
2008-01-01	31
2009-01-01	25
2010-01-01	24
2011-01-01	27
2012-01-01	24
2013-01-01	26
2014-01-01	24
2015-01-01	16
2016-01-01	19