Year	Number of Firms
1992-01-01	27
1997-01-01	57
2002-01-01	41
2003-01-01	39
2004-01-01	44
2005-01-01	49
2006-01-01	37
2007-01-01	54
2008-01-01	58
2009-01-01	71
2010-01-01	62
2011-01-01	71
2012-01-01	65
2013-01-01	80
2014-01-01	71
2015-01-01	64
2016-01-01	57