Year	Number of Firms
1992-01-01	7
1997-01-01	9
2002-01-01	15
2003-01-01	12
2004-01-01	27
2005-01-01	17
2006-01-01	21
2007-01-01	26
2008-01-01	38
2009-01-01	34
2010-01-01	44
2011-01-01	38
2012-01-01	38
2013-01-01	60
2014-01-01	68
2015-01-01	56
2016-01-01	46
