Year Number of Firms 1992-01-01 318 1997-01-01 480 2002-01-01 532 2003-01-01 550 2004-01-01 576 2005-01-01 638 2006-01-01 712 2007-01-01 775 2008-01-01 825 2009-01-01 741 2010-01-01 729 2011-01-01 786 2012-01-01 793 2013-01-01 782 2014-01-01 804 2015-01-01 754 2016-01-01 684