Year	Number of Firms
1992-01-01	7
1997-01-01	16
2002-01-01	25
2003-01-01	12
2004-01-01	20
2005-01-01	26
2006-01-01	19
2007-01-01	28
2008-01-01	13
2009-01-01	12
2010-01-01	16
2011-01-01	17
2012-01-01	28
2013-01-01	25
2014-01-01	27
2015-01-01	28
2016-01-01	19