Year Number of Firms 1992-01-01 196 1997-01-01 317 2002-01-01 305 2003-01-01 330 2004-01-01 362 2005-01-01 395 2006-01-01 408 2007-01-01 491 2008-01-01 577 2009-01-01 592 2010-01-01 638 2011-01-01 698 2012-01-01 735 2013-01-01 778 2014-01-01 753 2015-01-01 737 2016-01-01 669