Year	Number of Firms
1992-01-01	42
1997-01-01	42
2002-01-01	41
2003-01-01	41
2004-01-01	58
2005-01-01	53
2006-01-01	54
2007-01-01	61
2008-01-01	55
2009-01-01	61
2010-01-01	54
2011-01-01	65
2012-01-01	77
2013-01-01	74
2014-01-01	72
2015-01-01	82
2016-01-01	73