Year	Number of Firms
1992-01-01	6
1997-01-01	36
2002-01-01	31
2003-01-01	34
2004-01-01	40
2005-01-01	34
2006-01-01	47
2007-01-01	69
2008-01-01	66
2009-01-01	36
2010-01-01	35
2011-01-01	35
2012-01-01	32
2013-01-01	44
2014-01-01	33
2015-01-01	32
2016-01-01	50