Year	Number of Firms
1992-01-01	2
1997-01-01	2
2003-01-01	2
2004-01-01	2
2009-01-01	1
2010-01-01	1
2012-01-01	2
2013-01-01	6
2014-01-01	8
2015-01-01	9
2016-01-01	3