Year Number of Firms 1992-01-01 75 1997-01-01 140 2002-01-01 206 2003-01-01 195 2004-01-01 226 2005-01-01 309 2006-01-01 260 2007-01-01 321 2008-01-01 408 2009-01-01 446 2010-01-01 298 2011-01-01 354 2012-01-01 326 2013-01-01 345 2014-01-01 353 2015-01-01 382 2016-01-01 325