Year	Number of Firms
1997-01-01	6
2002-01-01	8
2003-01-01	16
2004-01-01	11
2005-01-01	15
2006-01-01	26
2007-01-01	26
2008-01-01	38
2009-01-01	31
2010-01-01	44
2011-01-01	52
2012-01-01	65
2013-01-01	66
2014-01-01	64
2015-01-01	46
2016-01-01	30