Year Number of Firms 1992-01-01 311 1997-01-01 548 2002-01-01 484 2003-01-01 408 2004-01-01 491 2005-01-01 539 2006-01-01 599 2007-01-01 712 2008-01-01 852 2009-01-01 866 2010-01-01 924 2011-01-01 785 2012-01-01 770 2013-01-01 834 2014-01-01 807 2015-01-01 802 2016-01-01 686