Year	Number of Firms
1992-01-01	35
1997-01-01	59
2002-01-01	56
2003-01-01	57
2004-01-01	77
2005-01-01	60
2006-01-01	84
2007-01-01	77
2008-01-01	75
2009-01-01	63
2010-01-01	65
2011-01-01	61
2012-01-01	65
2013-01-01	62
2014-01-01	61
2015-01-01	56
2016-01-01	57