Year	Number of Firms
1997-01-01	3
2002-01-01	6
2003-01-01	7
2004-01-01	7
2005-01-01	15
2006-01-01	17
2007-01-01	14
2008-01-01	17
2009-01-01	13
2010-01-01	14
2011-01-01	13
2012-01-01	22
2013-01-01	31
2014-01-01	42
2015-01-01	38
2016-01-01	34