Year Number of Firms 1992-01-01 1 1997-01-01 5 2002-01-01 6 2003-01-01 5 2004-01-01 13 2005-01-01 7 2006-01-01 10 2007-01-01 14 2008-01-01 25 2009-01-01 17 2010-01-01 19 2011-01-01 21 2012-01-01 18 2013-01-01 20 2014-01-01 15 2015-01-01 11 2016-01-01 10