Year Number of Firms 2003-01-01 9 2004-01-01 16 2005-01-01 27 2006-01-01 21 2007-01-01 26 2008-01-01 32 2009-01-01 32 2010-01-01 27 2011-01-01 30 2012-01-01 23 2013-01-01 28 2014-01-01 27 2015-01-01 20 2016-01-01 19