Year Number of Firms 1992-01-01 278 1997-01-01 507 2002-01-01 449 2003-01-01 532 2004-01-01 666 2005-01-01 741 2006-01-01 737 2007-01-01 802 2008-01-01 817 2009-01-01 791 2010-01-01 892 2011-01-01 916 2012-01-01 902 2013-01-01 842 2014-01-01 824 2015-01-01 791 2016-01-01 797