Year	Number of Firms
1997-01-01	28
2002-01-01	40
2003-01-01	56
2004-01-01	58
2005-01-01	71
2006-01-01	75
2007-01-01	89
2008-01-01	86
2009-01-01	69
2010-01-01	75
2011-01-01	86
2012-01-01	100
2013-01-01	82
2014-01-01	94
2015-01-01	95
2016-01-01	84