Year	Number of Firms
1997-01-01	38
2002-01-01	40
2003-01-01	41
2004-01-01	62
2005-01-01	70
2006-01-01	68
2007-01-01	82
2008-01-01	77
2009-01-01	54
2010-01-01	63
2011-01-01	68
2012-01-01	64
2013-01-01	70
2014-01-01	74
2015-01-01	53
2016-01-01	41