Year	Number of Firms
1992-01-01	1
1997-01-01	1
2002-01-01	4
2003-01-01	1
2004-01-01	4
2005-01-01	3
2006-01-01	8
2007-01-01	30
2008-01-01	39
2009-01-01	42
2010-01-01	16
2011-01-01	18
2012-01-01	14
2013-01-01	16
2014-01-01	17
2015-01-01	10
2016-01-01	6