Year	Number of Firms
1992-01-01	3
1997-01-01	12
2002-01-01	16
2003-01-01	13
2004-01-01	26
2005-01-01	22
2006-01-01	30
2007-01-01	35
2008-01-01	42
2009-01-01	36
2010-01-01	38
2011-01-01	36
2012-01-01	42
2013-01-01	39
2014-01-01	44
2015-01-01	40
2016-01-01	44