Year	Number of Firms
1992-01-01	41
1997-01-01	33
2002-01-01	38
2003-01-01	42
2004-01-01	47
2005-01-01	58
2006-01-01	62
2007-01-01	59
2008-01-01	63
2009-01-01	68
2010-01-01	61
2011-01-01	53
2012-01-01	63
2013-01-01	65
2014-01-01	54
2015-01-01	54
2016-01-01	56