Year Number of Firms 1992-01-01 417 1997-01-01 544 2002-01-01 340 2003-01-01 396 2004-01-01 406 2005-01-01 520 2006-01-01 648 2007-01-01 924 2008-01-01 1256 2009-01-01 1199 2010-01-01 1408 2011-01-01 1680 2012-01-01 1577 2013-01-01 1611 2014-01-01 1595 2015-01-01 1478 2016-01-01 1442