Year	Number of Firms
1992-01-01	9
1997-01-01	15
2002-01-01	9
2003-01-01	8
2004-01-01	8
2005-01-01	6
2006-01-01	8
2007-01-01	13
2008-01-01	14
2009-01-01	16
2010-01-01	25
2011-01-01	24
2012-01-01	30
2013-01-01	27
2014-01-01	22
2015-01-01	28
2016-01-01	30