Year	Number of Firms
1997-01-01	1
2002-01-01	9
2003-01-01	13
2004-01-01	21
2005-01-01	12
2006-01-01	14
2007-01-01	20
2008-01-01	29
2009-01-01	34
2010-01-01	42
2011-01-01	40
2012-01-01	40
2013-01-01	41
2014-01-01	37
2015-01-01	42
2016-01-01	50