Year Number of Firms 1992-01-01 112 1997-01-01 148 2002-01-01 132 2003-01-01 134 2004-01-01 157 2005-01-01 154 2006-01-01 176 2007-01-01 172 2008-01-01 190 2009-01-01 156 2010-01-01 177 2011-01-01 194 2012-01-01 178 2013-01-01 182 2014-01-01 183 2015-01-01 170 2016-01-01 180