Year Number of Firms 1992-01-01 152 1997-01-01 285 2002-01-01 253 2003-01-01 259 2004-01-01 269 2005-01-01 289 2006-01-01 353 2007-01-01 410 2008-01-01 408 2009-01-01 350 2010-01-01 396 2011-01-01 423 2012-01-01 416 2013-01-01 418 2014-01-01 394 2015-01-01 405 2016-01-01 375