Year Number of Firms 1992-01-01 106 1997-01-01 156 2002-01-01 188 2003-01-01 199 2004-01-01 204 2005-01-01 192 2006-01-01 188 2007-01-01 192 2008-01-01 188 2009-01-01 179 2010-01-01 178 2011-01-01 186 2012-01-01 190 2013-01-01 187 2014-01-01 198 2015-01-01 191 2016-01-01 178