Year Number of Firms 1992-01-01 166 1997-01-01 229 2002-01-01 208 2003-01-01 244 2004-01-01 262 2005-01-01 247 2006-01-01 262 2007-01-01 302 2008-01-01 319 2009-01-01 325 2010-01-01 331 2011-01-01 379 2012-01-01 380 2013-01-01 394 2014-01-01 384 2015-01-01 392 2016-01-01 352