Year Number of Firms 1992-01-01 14 1997-01-01 16 2002-01-01 14 2003-01-01 17 2004-01-01 23 2005-01-01 13 2006-01-01 12 2007-01-01 17 2008-01-01 18 2009-01-01 23 2010-01-01 22 2011-01-01 24 2012-01-01 19 2013-01-01 27 2014-01-01 26 2015-01-01 28 2016-01-01 42