Year Number of Firms 1992-01-01 130 1997-01-01 197 2002-01-01 261 2003-01-01 293 2004-01-01 276 2005-01-01 317 2006-01-01 316 2007-01-01 367 2008-01-01 415 2009-01-01 400 2010-01-01 434 2011-01-01 532 2012-01-01 483 2013-01-01 561 2014-01-01 553 2015-01-01 581 2016-01-01 567