Year Number of Firms 1992-01-01 92 1997-01-01 201 2002-01-01 211 2003-01-01 242 2004-01-01 240 2005-01-01 245 2006-01-01 281 2007-01-01 279 2008-01-01 298 2009-01-01 295 2010-01-01 332 2011-01-01 302 2012-01-01 320 2013-01-01 340 2014-01-01 367 2015-01-01 398 2016-01-01 421