Year Number of Firms 1992-01-01 8 1997-01-01 10 2002-01-01 15 2003-01-01 14 2004-01-01 17 2005-01-01 11 2006-01-01 17 2007-01-01 21 2008-01-01 26 2009-01-01 19 2010-01-01 28 2011-01-01 22 2012-01-01 23 2013-01-01 25 2014-01-01 25 2015-01-01 17 2016-01-01 27