Year	Number of Firms
1997-01-01	9
2002-01-01	7
2003-01-01	6
2004-01-01	14
2005-01-01	15
2006-01-01	20
2007-01-01	17
2008-01-01	31
2009-01-01	22
2010-01-01	17
2011-01-01	38
2012-01-01	49
2013-01-01	47
2014-01-01	45
2015-01-01	39
2016-01-01	34