Year Number of Firms 1992-01-01 263 1997-01-01 201 2002-01-01 170 2003-01-01 162 2004-01-01 170 2005-01-01 179 2006-01-01 163 2007-01-01 147 2008-01-01 131 2009-01-01 135 2010-01-01 125 2011-01-01 112 2012-01-01 94 2013-01-01 103 2014-01-01 101 2015-01-01 95 2016-01-01 88