Year Number of Firms 1992-01-01 8 1997-01-01 8 2002-01-01 7 2003-01-01 5 2004-01-01 9 2005-01-01 9 2006-01-01 8 2007-01-01 14 2008-01-01 10 2009-01-01 9 2010-01-01 21 2011-01-01 17 2012-01-01 16 2013-01-01 12 2014-01-01 14 2015-01-01 14 2016-01-01 12