Year	Number of Firms
1992-01-01	9
1997-01-01	16
2002-01-01	10
2003-01-01	16
2004-01-01	26
2005-01-01	30
2006-01-01	30
2007-01-01	46
2008-01-01	60
2009-01-01	48
2010-01-01	35
2011-01-01	36
2012-01-01	45
2013-01-01	41
2014-01-01	42
2015-01-01	39
2016-01-01	40