Year	Number of Firms
1997-01-01	10
2002-01-01	19
2003-01-01	25
2004-01-01	28
2005-01-01	37
2006-01-01	33
2007-01-01	38
2008-01-01	43
2009-01-01	47
2010-01-01	60
2011-01-01	58
2012-01-01	70
2013-01-01	68
2014-01-01	80
2015-01-01	84
2016-01-01	81