Year Number of Firms 1992-01-01 103 1997-01-01 158 2002-01-01 167 2003-01-01 191 2004-01-01 198 2005-01-01 212 2006-01-01 240 2007-01-01 255 2008-01-01 258 2009-01-01 271 2010-01-01 300 2011-01-01 344 2012-01-01 380 2013-01-01 350 2014-01-01 372 2015-01-01 346 2016-01-01 324