Year Number of Firms 1992-01-01 8 1997-01-01 8 2002-01-01 6 2003-01-01 2 2004-01-01 3 2005-01-01 5 2006-01-01 5 2007-01-01 8 2008-01-01 11 2009-01-01 11 2010-01-01 14 2011-01-01 12 2012-01-01 19 2013-01-01 14 2014-01-01 13 2015-01-01 20 2016-01-01 19