Year	Number of Firms
1992-01-01	49
1997-01-01	70
2002-01-01	52
2003-01-01	65
2004-01-01	56
2005-01-01	60
2006-01-01	65
2007-01-01	75
2008-01-01	100
2009-01-01	87
2010-01-01	65
2011-01-01	64
2012-01-01	50
2013-01-01	30
2014-01-01	53
2015-01-01	40
2016-01-01	38