Year	Number of Firms
1992-01-01	23
1997-01-01	27
2002-01-01	22
2003-01-01	27
2004-01-01	32
2005-01-01	40
2006-01-01	35
2007-01-01	41
2008-01-01	44
2009-01-01	44
2010-01-01	55
2011-01-01	56
2012-01-01	49
2013-01-01	57
2014-01-01	55
2015-01-01	45
2016-01-01	46