Year Number of Firms 1992-01-01 230 1997-01-01 398 2002-01-01 365 2003-01-01 429 2004-01-01 524 2005-01-01 567 2006-01-01 648 2007-01-01 705 2008-01-01 726 2009-01-01 751 2010-01-01 810 2011-01-01 946 2012-01-01 901 2013-01-01 936 2014-01-01 968 2015-01-01 901 2016-01-01 798