Year Number of Firms 1992-01-01 232 1997-01-01 300 2002-01-01 275 2003-01-01 284 2004-01-01 274 2005-01-01 286 2006-01-01 290 2007-01-01 322 2008-01-01 318 2009-01-01 298 2010-01-01 304 2011-01-01 302 2012-01-01 291 2013-01-01 295 2014-01-01 303 2015-01-01 313 2016-01-01 290