Year	Number of Firms
1992-01-01	3
1997-01-01	12
2002-01-01	12
2003-01-01	11
2004-01-01	12
2005-01-01	15
2006-01-01	11
2007-01-01	11
2008-01-01	14
2009-01-01	20
2010-01-01	34
2011-01-01	37
2012-01-01	36
2013-01-01	30
2014-01-01	31
2015-01-01	25
2016-01-01	39