Year Number of Firms 1992-01-01 439 1997-01-01 688 2002-01-01 534 2003-01-01 586 2004-01-01 628 2005-01-01 669 2006-01-01 696 2007-01-01 766 2008-01-01 816 2009-01-01 752 2010-01-01 769 2011-01-01 834 2012-01-01 794 2013-01-01 752 2014-01-01 764 2015-01-01 715 2016-01-01 682