Year Number of Firms 1992-01-01 1 1997-01-01 8 2002-01-01 15 2003-01-01 11 2004-01-01 12 2005-01-01 19 2006-01-01 16 2007-01-01 12 2008-01-01 27 2009-01-01 19 2010-01-01 20 2011-01-01 19 2012-01-01 21 2013-01-01 28 2014-01-01 19 2015-01-01 20 2016-01-01 16