Year	Number of Firms
1997-01-01	3
2002-01-01	9
2003-01-01	12
2004-01-01	16
2005-01-01	30
2006-01-01	23
2007-01-01	33
2008-01-01	39
2009-01-01	27
2010-01-01	21
2011-01-01	36
2012-01-01	39
2013-01-01	35
2014-01-01	46
2015-01-01	37
2016-01-01	30