Year Number of Firms 1992-01-01 259 1997-01-01 304 2002-01-01 263 2003-01-01 273 2004-01-01 269 2005-01-01 287 2006-01-01 303 2007-01-01 344 2008-01-01 389 2009-01-01 336 2010-01-01 320 2011-01-01 339 2012-01-01 320 2013-01-01 306 2014-01-01 309 2015-01-01 296 2016-01-01 281