Year	Number of Firms
1992-01-01	7
1997-01-01	8
2002-01-01	27
2003-01-01	26
2004-01-01	36
2005-01-01	38
2006-01-01	41
2007-01-01	43
2008-01-01	56
2009-01-01	48
2010-01-01	39
2011-01-01	34
2012-01-01	48
2013-01-01	40
2014-01-01	46
2015-01-01	47
2016-01-01	39