Year Number of Firms 1992-01-01 393 1997-01-01 696 2002-01-01 667 2003-01-01 665 2004-01-01 720 2005-01-01 693 2006-01-01 691 2007-01-01 738 2008-01-01 781 2009-01-01 814 2010-01-01 903 2011-01-01 938 2012-01-01 943 2013-01-01 924 2014-01-01 901 2015-01-01 931 2016-01-01 928