Year	Number of Firms
1997-01-01	7
2002-01-01	6
2003-01-01	6
2004-01-01	5
2005-01-01	8
2006-01-01	16
2007-01-01	17
2008-01-01	16
2009-01-01	18
2010-01-01	18
2011-01-01	25
2012-01-01	27
2013-01-01	31
2014-01-01	40
2015-01-01	37
2016-01-01	42