Year	Number of Firms
1992-01-01	18
1997-01-01	60
2002-01-01	70
2003-01-01	59
2004-01-01	69
2005-01-01	63
2006-01-01	71
2007-01-01	89
2008-01-01	87
2009-01-01	76
2010-01-01	84
2011-01-01	81
2012-01-01	77
2013-01-01	98
2014-01-01	88
2015-01-01	77
2016-01-01	73