Year Number of Firms 1992-01-01 104 1997-01-01 141 2002-01-01 162 2003-01-01 168 2004-01-01 188 2005-01-01 178 2006-01-01 198 2007-01-01 205 2008-01-01 200 2009-01-01 203 2010-01-01 204 2011-01-01 217 2012-01-01 195 2013-01-01 201 2014-01-01 198 2015-01-01 192 2016-01-01 202