Year Number of Firms 1992-01-01 119 1997-01-01 207 2002-01-01 241 2003-01-01 269 2004-01-01 260 2005-01-01 319 2006-01-01 335 2007-01-01 391 2008-01-01 429 2009-01-01 415 2010-01-01 473 2011-01-01 483 2012-01-01 505 2013-01-01 499 2014-01-01 533 2015-01-01 527 2016-01-01 512