Year Number of Firms 1992-01-01 197 1997-01-01 235 2002-01-01 259 2003-01-01 278 2004-01-01 300 2005-01-01 279 2006-01-01 296 2007-01-01 366 2008-01-01 350 2009-01-01 320 2010-01-01 334 2011-01-01 305 2012-01-01 283 2013-01-01 304 2014-01-01 284 2015-01-01 267 2016-01-01 275