Year Number of Firms 1992-01-01 7 1997-01-01 6 2002-01-01 10 2003-01-01 10 2004-01-01 11 2005-01-01 15 2006-01-01 15 2007-01-01 16 2008-01-01 19 2009-01-01 21 2010-01-01 20 2011-01-01 27 2012-01-01 24 2013-01-01 30 2014-01-01 25 2015-01-01 28 2016-01-01 26