Year	Number of Firms
1997-01-01	2
2002-01-01	8
2003-01-01	9
2004-01-01	11
2005-01-01	15
2006-01-01	16
2007-01-01	20
2008-01-01	19
2009-01-01	19
2010-01-01	21
2011-01-01	26
2012-01-01	41
2013-01-01	35
2014-01-01	52
2015-01-01	46
2016-01-01	21