Year Number of Firms 1992-01-01 97 1997-01-01 229 2002-01-01 200 2003-01-01 189 2004-01-01 178 2005-01-01 224 2006-01-01 241 2007-01-01 276 2008-01-01 276 2009-01-01 304 2010-01-01 325 2011-01-01 354 2012-01-01 347 2013-01-01 355 2014-01-01 370 2015-01-01 332 2016-01-01 260