Year	Number of Firms
1992-01-01	7
1997-01-01	9
2002-01-01	30
2003-01-01	22
2004-01-01	24
2005-01-01	30
2006-01-01	27
2007-01-01	30
2008-01-01	21
2009-01-01	35
2010-01-01	28
2011-01-01	39
2012-01-01	21
2013-01-01	15
2014-01-01	14
2015-01-01	12
2016-01-01	12