Year Number of Firms 1992-01-01 105 1997-01-01 197 2002-01-01 91 2003-01-01 111 2004-01-01 133 2005-01-01 150 2006-01-01 156 2007-01-01 185 2008-01-01 192 2009-01-01 164 2010-01-01 182 2011-01-01 193 2012-01-01 162 2013-01-01 154 2014-01-01 162 2015-01-01 172 2016-01-01 173