Year Number of Firms 1992-01-01 149 1997-01-01 260 2002-01-01 267 2003-01-01 342 2004-01-01 407 2005-01-01 476 2006-01-01 505 2007-01-01 594 2008-01-01 648 2009-01-01 661 2010-01-01 781 2011-01-01 869 2012-01-01 926 2013-01-01 914 2014-01-01 877 2015-01-01 889 2016-01-01 854