Year Number of Firms 1992-01-01 113 1997-01-01 154 2002-01-01 177 2003-01-01 186 2004-01-01 180 2005-01-01 186 2006-01-01 195 2007-01-01 207 2008-01-01 208 2009-01-01 205 2010-01-01 192 2011-01-01 207 2012-01-01 194 2013-01-01 217 2014-01-01 204 2015-01-01 192 2016-01-01 187