Year Number of Firms 1992-01-01 72 1997-01-01 110 2002-01-01 118 2003-01-01 131 2004-01-01 126 2005-01-01 129 2006-01-01 137 2007-01-01 131 2008-01-01 127 2009-01-01 121 2010-01-01 137 2011-01-01 128 2012-01-01 143 2013-01-01 130 2014-01-01 131 2015-01-01 114 2016-01-01 123