Year Number of Firms 1992-01-01 83 1997-01-01 159 2002-01-01 203 2003-01-01 207 2004-01-01 209 2005-01-01 225 2006-01-01 214 2007-01-01 233 2008-01-01 264 2009-01-01 291 2010-01-01 325 2011-01-01 306 2012-01-01 323 2013-01-01 333 2014-01-01 351 2015-01-01 353 2016-01-01 329