Year Number of Firms 1992-01-01 346 1997-01-01 469 2002-01-01 499 2003-01-01 544 2004-01-01 561 2005-01-01 582 2006-01-01 587 2007-01-01 616 2008-01-01 648 2009-01-01 639 2010-01-01 659 2011-01-01 700 2012-01-01 706 2013-01-01 672 2014-01-01 756 2015-01-01 754 2016-01-01 744