Year Number of Firms 1992-01-01 65 1997-01-01 77 2002-01-01 109 2003-01-01 131 2004-01-01 137 2005-01-01 139 2006-01-01 119 2007-01-01 162 2008-01-01 154 2009-01-01 140 2010-01-01 140 2011-01-01 159 2012-01-01 171 2013-01-01 167 2014-01-01 169 2015-01-01 182 2016-01-01 166