Year Number of Firms 1992-01-01 109 1997-01-01 197 2002-01-01 244 2003-01-01 242 2004-01-01 231 2005-01-01 249 2006-01-01 255 2007-01-01 260 2008-01-01 263 2009-01-01 217 2010-01-01 247 2011-01-01 237 2012-01-01 214 2013-01-01 195 2014-01-01 234 2015-01-01 205 2016-01-01 213