Year Number of Firms 1992-01-01 77 1997-01-01 97 2002-01-01 129 2003-01-01 142 2004-01-01 145 2005-01-01 169 2006-01-01 175 2007-01-01 194 2008-01-01 217 2009-01-01 218 2010-01-01 242 2011-01-01 248 2012-01-01 232 2013-01-01 231 2014-01-01 243 2015-01-01 230 2016-01-01 198