Year	Number of Firms
1997-01-01	3
2002-01-01	3
2003-01-01	4
2004-01-01	7
2005-01-01	9
2006-01-01	6
2007-01-01	12
2008-01-01	21
2009-01-01	48
2010-01-01	47
2011-01-01	56
2012-01-01	35
2013-01-01	37
2014-01-01	21
2015-01-01	14
2016-01-01	13