Year	Number of Firms
1997-01-01	8
2002-01-01	7
2003-01-01	8
2004-01-01	4
2005-01-01	7
2006-01-01	17
2007-01-01	20
2008-01-01	27
2009-01-01	21
2010-01-01	24
2011-01-01	46
2012-01-01	72
2013-01-01	53
2014-01-01	53
2015-01-01	40
2016-01-01	44