Year	Number of Firms
1992-01-01	3
1997-01-01	8
2002-01-01	12
2003-01-01	17
2004-01-01	11
2005-01-01	30
2006-01-01	38
2007-01-01	38
2008-01-01	46
2009-01-01	41
2010-01-01	40
2011-01-01	39
2012-01-01	42
2013-01-01	35
2014-01-01	32
2015-01-01	50
2016-01-01	47