Year	Number of Firms
1992-01-01	7
1997-01-01	20
2002-01-01	31
2003-01-01	31
2004-01-01	25
2005-01-01	49
2006-01-01	62
2007-01-01	63
2008-01-01	64
2009-01-01	46
2010-01-01	26
2011-01-01	31
2012-01-01	27
2013-01-01	23
2014-01-01	19
2015-01-01	35
2016-01-01	31