Year	Number of Firms
1992-01-01	1
2002-01-01	10
2003-01-01	12
2004-01-01	12
2005-01-01	10
2006-01-01	20
2007-01-01	22
2008-01-01	17
2009-01-01	8
2010-01-01	5
2011-01-01	2
2012-01-01	3
2014-01-01	1
2015-01-01	2
2016-01-01	4