Year Number of Firms 1992-01-01 336 1997-01-01 573 2002-01-01 685 2003-01-01 710 2004-01-01 762 2005-01-01 824 2006-01-01 831 2007-01-01 892 2008-01-01 958 2009-01-01 899 2010-01-01 1068 2011-01-01 1062 2012-01-01 1112 2013-01-01 1129 2014-01-01 1191 2015-01-01 1244 2016-01-01 1230