Year	Number of Firms
1992-01-01	1
1997-01-01	23
2002-01-01	8
2003-01-01	14
2004-01-01	18
2005-01-01	18
2006-01-01	26
2007-01-01	33
2008-01-01	41
2009-01-01	35
2010-01-01	35
2011-01-01	39
2012-01-01	32
2013-01-01	39
2014-01-01	44
2015-01-01	32
2016-01-01	18