Year	Number of Firms
1992-01-01	9
1997-01-01	16
2002-01-01	17
2003-01-01	24
2004-01-01	35
2005-01-01	40
2006-01-01	33
2007-01-01	38
2008-01-01	34
2009-01-01	49
2010-01-01	53
2011-01-01	40
2012-01-01	37
2013-01-01	26
2014-01-01	32
2015-01-01	26
2016-01-01	34