Year	Number of Firms
1992-01-01	9
1997-01-01	5
2002-01-01	13
2003-01-01	16
2004-01-01	16
2005-01-01	16
2006-01-01	16
2007-01-01	22
2008-01-01	22
2009-01-01	33
2010-01-01	38
2011-01-01	49
2012-01-01	49
2013-01-01	40
2014-01-01	48
2015-01-01	34
2016-01-01	38