Year Number of Firms 1992-01-01 3 1997-01-01 7 2002-01-01 8 2003-01-01 7 2004-01-01 7 2005-01-01 9 2006-01-01 11 2007-01-01 14 2008-01-01 9 2009-01-01 6 2010-01-01 18 2011-01-01 15 2012-01-01 20 2013-01-01 19 2014-01-01 19 2015-01-01 27 2016-01-01 25