Year Number of Firms 1992-01-01 134 1997-01-01 170 2002-01-01 108 2003-01-01 133 2004-01-01 152 2005-01-01 164 2006-01-01 152 2007-01-01 180 2008-01-01 188 2009-01-01 203 2010-01-01 201 2011-01-01 198 2012-01-01 213 2013-01-01 178 2014-01-01 185 2015-01-01 195 2016-01-01 186