Year Number of Firms 1992-01-01 120 1997-01-01 156 2002-01-01 200 2003-01-01 214 2004-01-01 204 2005-01-01 219 2006-01-01 214 2007-01-01 236 2008-01-01 237 2009-01-01 209 2010-01-01 211 2011-01-01 202 2012-01-01 191 2013-01-01 203 2014-01-01 203 2015-01-01 202 2016-01-01 199