Year Number of Firms 1992-01-01 203 1997-01-01 277 2002-01-01 296 2003-01-01 276 2004-01-01 306 2005-01-01 295 2006-01-01 293 2007-01-01 312 2008-01-01 330 2009-01-01 307 2010-01-01 303 2011-01-01 341 2012-01-01 310 2013-01-01 292 2014-01-01 283 2015-01-01 256 2016-01-01 262