Year	Number of Firms
1992-01-01	32
1997-01-01	60
2002-01-01	57
2003-01-01	55
2004-01-01	61
2005-01-01	73
2006-01-01	76
2007-01-01	82
2008-01-01	78
2009-01-01	71
2010-01-01	65
2011-01-01	69
2012-01-01	70
2013-01-01	62
2014-01-01	64
2015-01-01	58
2016-01-01	61