Year Number of Firms 1992-01-01 195 1997-01-01 380 2002-01-01 373 2003-01-01 375 2004-01-01 418 2005-01-01 450 2006-01-01 490 2007-01-01 517 2008-01-01 550 2009-01-01 542 2010-01-01 607 2011-01-01 644 2012-01-01 641 2013-01-01 705 2014-01-01 716 2015-01-01 635 2016-01-01 566