Year Number of Firms 1992-01-01 198 1997-01-01 281 2002-01-01 310 2003-01-01 302 2004-01-01 312 2005-01-01 298 2006-01-01 339 2007-01-01 360 2008-01-01 364 2009-01-01 355 2010-01-01 345 2011-01-01 381 2012-01-01 403 2013-01-01 391 2014-01-01 429 2015-01-01 409 2016-01-01 384