Year	Number of Firms
1992-01-01	54
1997-01-01	67
2002-01-01	57
2003-01-01	58
2004-01-01	52
2005-01-01	61
2006-01-01	53
2007-01-01	54
2008-01-01	74
2009-01-01	77
2010-01-01	61
2011-01-01	58
2012-01-01	64
2013-01-01	69
2014-01-01	65
2015-01-01	59
2016-01-01	65