Year	Number of Firms
1997-01-01	27
2002-01-01	28
2003-01-01	41
2004-01-01	37
2005-01-01	49
2006-01-01	47
2007-01-01	65
2008-01-01	63
2009-01-01	47
2010-01-01	59
2011-01-01	55
2012-01-01	64
2013-01-01	57
2014-01-01	61
2015-01-01	63
2016-01-01	47