Year Number of Firms 1992-01-01 4669 1997-01-01 7989 2002-01-01 6677 2003-01-01 6609 2004-01-01 5987 2005-01-01 5931 2006-01-01 6466 2007-01-01 6927 2008-01-01 7083 2009-01-01 6368 2010-01-01 6648 2011-01-01 6997 2012-01-01 6956 2013-01-01 6881 2014-01-01 6757 2015-01-01 6537 2016-01-01 6311