Year	Number of Firms
1992-01-01	8
1997-01-01	13
2002-01-01	27
2003-01-01	28
2004-01-01	30
2005-01-01	52
2006-01-01	46
2007-01-01	49
2008-01-01	73
2009-01-01	50
2010-01-01	38
2011-01-01	51
2012-01-01	42
2013-01-01	47
2014-01-01	57
2015-01-01	57
2016-01-01	51