Year	Number of Firms
1997-01-01	5
2002-01-01	14
2003-01-01	7
2004-01-01	8
2005-01-01	15
2006-01-01	19
2007-01-01	16
2008-01-01	18
2009-01-01	21
2010-01-01	21
2011-01-01	34
2012-01-01	23
2013-01-01	19
2014-01-01	27
2015-01-01	21
2016-01-01	15