Year	Number of Firms
1992-01-01	24
1997-01-01	43
2002-01-01	43
2003-01-01	45
2004-01-01	47
2005-01-01	50
2006-01-01	53
2007-01-01	58
2008-01-01	66
2009-01-01	39
2010-01-01	41
2011-01-01	44
2012-01-01	37
2013-01-01	40
2014-01-01	49
2015-01-01	43
2016-01-01	46