Year	Number of Firms
1992-01-01	9
1997-01-01	30
2002-01-01	40
2003-01-01	35
2004-01-01	48
2005-01-01	25
2006-01-01	38
2007-01-01	39
2008-01-01	50
2009-01-01	52
2010-01-01	64
2011-01-01	54
2012-01-01	54
2013-01-01	58
2014-01-01	55
2015-01-01	53
2016-01-01	50