Year Number of Firms 1992-01-01 122 1997-01-01 164 2002-01-01 160 2003-01-01 171 2004-01-01 204 2005-01-01 194 2006-01-01 198 2007-01-01 212 2008-01-01 207 2009-01-01 194 2010-01-01 229 2011-01-01 242 2012-01-01 220 2013-01-01 235 2014-01-01 221 2015-01-01 213 2016-01-01 189