Year	Number of Firms
1997-01-01	2
2002-01-01	5
2003-01-01	5
2004-01-01	10
2005-01-01	11
2006-01-01	8
2007-01-01	14
2008-01-01	24
2009-01-01	12
2010-01-01	13
2011-01-01	11
2012-01-01	14
2013-01-01	19
2014-01-01	15
2015-01-01	13
2016-01-01	14