Year Number of Firms 1992-01-01 10 1997-01-01 11 2002-01-01 9 2003-01-01 12 2004-01-01 12 2005-01-01 19 2006-01-01 13 2007-01-01 19 2008-01-01 17 2009-01-01 12 2010-01-01 15 2011-01-01 19 2012-01-01 25 2013-01-01 27 2014-01-01 24 2015-01-01 27 2016-01-01 17