Year Number of Firms 1992-01-01 113 1997-01-01 187 2002-01-01 197 2003-01-01 207 2004-01-01 210 2005-01-01 217 2006-01-01 217 2007-01-01 252 2008-01-01 259 2009-01-01 250 2010-01-01 251 2011-01-01 289 2012-01-01 285 2013-01-01 312 2014-01-01 306 2015-01-01 312 2016-01-01 354