Year Number of Firms 1992-01-01 96 1997-01-01 185 2002-01-01 197 2003-01-01 208 2004-01-01 219 2005-01-01 217 2006-01-01 212 2007-01-01 258 2008-01-01 256 2009-01-01 254 2010-01-01 271 2011-01-01 303 2012-01-01 294 2013-01-01 297 2014-01-01 296 2015-01-01 273 2016-01-01 261