Year Number of Firms 1992-01-01 78 1997-01-01 185 2002-01-01 176 2003-01-01 197 2004-01-01 202 2005-01-01 187 2006-01-01 194 2007-01-01 226 2008-01-01 254 2009-01-01 233 2010-01-01 238 2011-01-01 272 2012-01-01 283 2013-01-01 298 2014-01-01 296 2015-01-01 270 2016-01-01 287