Year	Number of Firms
1992-01-01	6
1997-01-01	12
2002-01-01	28
2003-01-01	26
2004-01-01	25
2005-01-01	34
2006-01-01	35
2007-01-01	37
2008-01-01	58
2009-01-01	54
2010-01-01	49
2011-01-01	68
2012-01-01	58
2013-01-01	66
2014-01-01	64
2015-01-01	70
2016-01-01	70