Year	Number of Firms
1992-01-01	3
1997-01-01	8
2002-01-01	6
2003-01-01	8
2004-01-01	7
2005-01-01	14
2006-01-01	21
2007-01-01	26
2008-01-01	26
2009-01-01	26
2010-01-01	27
2011-01-01	32
2012-01-01	39
2013-01-01	32
2014-01-01	29
2015-01-01	42
2016-01-01	52