Year Number of Firms 1992-01-01 12 1997-01-01 26 2002-01-01 19 2003-01-01 12 2004-01-01 18 2005-01-01 16 2006-01-01 19 2007-01-01 14 2008-01-01 17 2009-01-01 14 2010-01-01 23 2011-01-01 26 2012-01-01 29 2013-01-01 23 2014-01-01 23 2015-01-01 23 2016-01-01 14