Year	Number of Firms
1992-01-01	59
1997-01-01	60
2002-01-01	61
2003-01-01	59
2004-01-01	51
2005-01-01	56
2006-01-01	53
2007-01-01	69
2008-01-01	56
2009-01-01	58
2010-01-01	50
2011-01-01	59
2012-01-01	63
2013-01-01	48
2014-01-01	47
2015-01-01	32
2016-01-01	42