Year Number of Firms 1992-01-01 206 1997-01-01 286 2002-01-01 221 2003-01-01 239 2004-01-01 251 2005-01-01 257 2006-01-01 271 2007-01-01 294 2008-01-01 322 2009-01-01 264 2010-01-01 319 2011-01-01 312 2012-01-01 297 2013-01-01 307 2014-01-01 275 2015-01-01 314 2016-01-01 273