Year	Number of Firms
1992-01-01	9
1997-01-01	22
2002-01-01	17
2003-01-01	18
2004-01-01	20
2005-01-01	24
2006-01-01	19
2007-01-01	20
2008-01-01	34
2009-01-01	27
2010-01-01	27
2011-01-01	32
2012-01-01	39
2013-01-01	35
2014-01-01	44
2015-01-01	38
2016-01-01	48