Year Number of Firms 1992-01-01 388 1997-01-01 570 2002-01-01 747 2003-01-01 748 2004-01-01 733 2005-01-01 733 2006-01-01 751 2007-01-01 790 2008-01-01 781 2009-01-01 785 2010-01-01 808 2011-01-01 802 2012-01-01 765 2013-01-01 726 2014-01-01 776 2015-01-01 773 2016-01-01 770