Year Number of Firms 1992-01-01 125 1997-01-01 179 2002-01-01 275 2003-01-01 292 2004-01-01 330 2005-01-01 371 2006-01-01 417 2007-01-01 470 2008-01-01 600 2009-01-01 757 2010-01-01 670 2011-01-01 627 2012-01-01 697 2013-01-01 769 2014-01-01 731 2015-01-01 730 2016-01-01 746