Year	Number of Firms
1992-01-01	11
1997-01-01	26
2002-01-01	15
2003-01-01	20
2004-01-01	12
2005-01-01	13
2006-01-01	14
2007-01-01	13
2008-01-01	25
2009-01-01	26
2010-01-01	29
2011-01-01	37
2012-01-01	32
2013-01-01	38
2014-01-01	37
2015-01-01	33
2016-01-01	43