Year	Number of Firms
1997-01-01	15
2002-01-01	32
2003-01-01	26
2004-01-01	37
2005-01-01	32
2006-01-01	46
2007-01-01	57
2008-01-01	57
2009-01-01	61
2010-01-01	84
2011-01-01	105
2012-01-01	120
2013-01-01	156
2014-01-01	151
2015-01-01	122
2016-01-01	87