Year Number of Firms 1992-01-01 185 1997-01-01 261 2002-01-01 263 2003-01-01 276 2004-01-01 330 2005-01-01 526 2006-01-01 550 2007-01-01 670 2008-01-01 796 2009-01-01 455 2010-01-01 471 2011-01-01 472 2012-01-01 451 2013-01-01 426 2014-01-01 355 2015-01-01 262 2016-01-01 253