Year	Number of Firms
1992-01-01	2
1997-01-01	2
2002-01-01	4
2003-01-01	5
2004-01-01	8
2005-01-01	12
2006-01-01	11
2007-01-01	21
2008-01-01	15
2009-01-01	12
2010-01-01	8
2011-01-01	16
2012-01-01	21
2013-01-01	25
2014-01-01	26
2015-01-01	23
2016-01-01	22