Year Number of Firms 1992-01-01 14 1997-01-01 20 2002-01-01 26 2003-01-01 24 2004-01-01 19 2005-01-01 20 2006-01-01 27 2007-01-01 30 2008-01-01 40 2009-01-01 32 2010-01-01 39 2011-01-01 42 2012-01-01 38 2013-01-01 40 2014-01-01 40 2015-01-01 34 2016-01-01 36