Year Number of Firms 1992-01-01 72 1997-01-01 93 2002-01-01 112 2003-01-01 125 2004-01-01 123 2005-01-01 120 2006-01-01 134 2007-01-01 155 2008-01-01 152 2009-01-01 144 2010-01-01 157 2011-01-01 167 2012-01-01 170 2013-01-01 160 2014-01-01 170 2015-01-01 150 2016-01-01 154