Year	Number of Firms
1992-01-01	25
1997-01-01	38
2002-01-01	34
2003-01-01	33
2004-01-01	43
2005-01-01	42
2006-01-01	51
2007-01-01	54
2008-01-01	53
2009-01-01	52
2010-01-01	70
2011-01-01	70
2012-01-01	71
2013-01-01	71
2014-01-01	75
2015-01-01	74
2016-01-01	81