Year Number of Firms 1992-01-01 265 1997-01-01 340 2002-01-01 453 2003-01-01 452 2004-01-01 479 2005-01-01 583 2006-01-01 571 2007-01-01 654 2008-01-01 850 2009-01-01 1006 2010-01-01 989 2011-01-01 1064 2012-01-01 1050 2013-01-01 1036 2014-01-01 989 2015-01-01 1011 2016-01-01 947