Year Number of Firms 1992-01-01 3381 1997-01-01 5235 2002-01-01 5037 2003-01-01 5223 2004-01-01 5324 2005-01-01 5378 2006-01-01 5715 2007-01-01 6418 2008-01-01 6766 2009-01-01 6463 2010-01-01 6787 2011-01-01 7215 2012-01-01 7203 2013-01-01 7145 2014-01-01 7346 2015-01-01 7190 2016-01-01 6961