Year	Number of Firms
1992-01-01	2
1997-01-01	8
2002-01-01	16
2003-01-01	19
2004-01-01	20
2005-01-01	27
2006-01-01	37
2007-01-01	36
2008-01-01	39
2009-01-01	44
2010-01-01	48
2011-01-01	41
2012-01-01	36
2013-01-01	40
2014-01-01	58
2015-01-01	52
2016-01-01	52