Year	Number of Firms
1992-01-01	36
1997-01-01	52
2002-01-01	57
2003-01-01	52
2004-01-01	63
2005-01-01	60
2006-01-01	56
2007-01-01	60
2008-01-01	81
2009-01-01	100
2010-01-01	88
2011-01-01	99
2012-01-01	87
2013-01-01	90
2014-01-01	86
2015-01-01	82
2016-01-01	89