Year	Number of Firms
1992-01-01	6
1997-01-01	17
2002-01-01	17
2003-01-01	13
2004-01-01	16
2005-01-01	24
2006-01-01	32
2007-01-01	33
2008-01-01	36
2009-01-01	44
2010-01-01	49
2011-01-01	46
2012-01-01	51
2013-01-01	53
2014-01-01	42
2015-01-01	47
2016-01-01	27