Year	Number of Firms
1997-01-01	6
2002-01-01	10
2003-01-01	10
2004-01-01	12
2005-01-01	18
2006-01-01	20
2007-01-01	10
2008-01-01	16
2009-01-01	15
2010-01-01	18
2011-01-01	27
2012-01-01	21
2013-01-01	31
2014-01-01	34
2015-01-01	24
2016-01-01	25