Year Number of Firms 1992-01-01 698 1997-01-01 871 2002-01-01 861 2003-01-01 875 2004-01-01 870 2005-01-01 816 2006-01-01 874 2007-01-01 910 2008-01-01 926 2009-01-01 847 2010-01-01 870 2011-01-01 898 2012-01-01 821 2013-01-01 816 2014-01-01 829 2015-01-01 811 2016-01-01 773