Year Number of Firms 1992-01-01 103 1997-01-01 120 2002-01-01 148 2003-01-01 164 2004-01-01 153 2005-01-01 151 2006-01-01 178 2007-01-01 205 2008-01-01 230 2009-01-01 237 2010-01-01 259 2011-01-01 285 2012-01-01 303 2013-01-01 318 2014-01-01 319 2015-01-01 302 2016-01-01 280