Year Number of Firms 1992-01-01 46 1997-01-01 90 2002-01-01 114 2003-01-01 108 2004-01-01 135 2005-01-01 117 2006-01-01 134 2007-01-01 143 2008-01-01 135 2009-01-01 156 2010-01-01 149 2011-01-01 150 2012-01-01 172 2013-01-01 174 2014-01-01 142 2015-01-01 139 2016-01-01 163