Year	Number of Firms
1992-01-01	5
1997-01-01	12
2002-01-01	25
2003-01-01	22
2004-01-01	30
2005-01-01	40
2006-01-01	49
2007-01-01	50
2008-01-01	60
2009-01-01	52
2010-01-01	50
2011-01-01	46
2012-01-01	53
2013-01-01	49
2014-01-01	41
2015-01-01	47
2016-01-01	53