Year Number of Firms 1992-01-01 98 1997-01-01 232 2002-01-01 310 2003-01-01 372 2004-01-01 422 2005-01-01 478 2006-01-01 470 2007-01-01 605 2008-01-01 628 2009-01-01 653 2010-01-01 713 2011-01-01 744 2012-01-01 696 2013-01-01 672 2014-01-01 667 2015-01-01 695 2016-01-01 740