Year	Number of Firms
1992-01-01	15
1997-01-01	41
2002-01-01	38
2003-01-01	33
2004-01-01	34
2005-01-01	47
2006-01-01	54
2007-01-01	53
2008-01-01	68
2009-01-01	61
2010-01-01	62
2011-01-01	60
2012-01-01	71
2013-01-01	65
2014-01-01	73
2015-01-01	69
2016-01-01	66