Year Number of Firms 1992-01-01 109 1997-01-01 120 2002-01-01 135 2003-01-01 136 2004-01-01 131 2005-01-01 148 2006-01-01 155 2007-01-01 170 2008-01-01 162 2009-01-01 161 2010-01-01 164 2011-01-01 170 2012-01-01 145 2013-01-01 155 2014-01-01 151 2015-01-01 139 2016-01-01 124