Year Number of Firms 1992-01-01 397 1997-01-01 442 2002-01-01 417 2003-01-01 457 2004-01-01 583 2005-01-01 625 2006-01-01 624 2007-01-01 804 2008-01-01 914 2009-01-01 657 2010-01-01 779 2011-01-01 792 2012-01-01 754 2013-01-01 709 2014-01-01 701 2015-01-01 669 2016-01-01 643