Year	Number of Firms
1997-01-01	2
2003-01-01	8
2004-01-01	9
2005-01-01	16
2006-01-01	16
2007-01-01	16
2008-01-01	15
2009-01-01	29
2010-01-01	45
2011-01-01	41
2012-01-01	28
2013-01-01	29
2014-01-01	27
2015-01-01	16
2016-01-01	14