Year	Number of Firms
1992-01-01	21
1997-01-01	37
2002-01-01	38
2003-01-01	46
2004-01-01	47
2005-01-01	50
2006-01-01	56
2007-01-01	58
2008-01-01	70
2009-01-01	58
2010-01-01	58
2011-01-01	65
2012-01-01	75
2013-01-01	63
2014-01-01	71
2015-01-01	70
2016-01-01	51