Year	Number of Firms
1992-01-01	47
1997-01-01	65
2002-01-01	56
2003-01-01	62
2004-01-01	63
2005-01-01	63
2006-01-01	60
2007-01-01	69
2008-01-01	75
2009-01-01	60
2010-01-01	44
2011-01-01	48
2012-01-01	51
2013-01-01	62
2014-01-01	58
2015-01-01	48
2016-01-01	48