Year	Number of Firms
1992-01-01	22
1997-01-01	34
2002-01-01	27
2003-01-01	35
2004-01-01	30
2005-01-01	34
2006-01-01	35
2007-01-01	38
2008-01-01	44
2009-01-01	44
2010-01-01	43
2011-01-01	46
2012-01-01	43
2013-01-01	42
2014-01-01	41
2015-01-01	44
2016-01-01	39