Year Number of Firms 1992-01-01 438 1997-01-01 622 2002-01-01 682 2003-01-01 709 2004-01-01 742 2005-01-01 753 2006-01-01 769 2007-01-01 797 2008-01-01 823 2009-01-01 803 2010-01-01 884 2011-01-01 871 2012-01-01 864 2013-01-01 896 2014-01-01 911 2015-01-01 887 2016-01-01 934