Year	Number of Firms
1992-01-01	14
1997-01-01	32
2002-01-01	37
2003-01-01	39
2004-01-01	35
2005-01-01	49
2006-01-01	42
2007-01-01	42
2008-01-01	44
2009-01-01	41
2010-01-01	49
2011-01-01	50
2012-01-01	47
2013-01-01	47
2014-01-01	46
2015-01-01	43
2016-01-01	49