Year Number of Firms 1992-01-01 74 1997-01-01 126 2002-01-01 136 2003-01-01 120 2004-01-01 115 2005-01-01 130 2006-01-01 144 2007-01-01 166 2008-01-01 187 2009-01-01 184 2010-01-01 204 2011-01-01 224 2012-01-01 219 2013-01-01 228 2014-01-01 257 2015-01-01 203 2016-01-01 219