Year Number of Firms 1992-01-01 39 1997-01-01 71 2002-01-01 88 2003-01-01 121 2004-01-01 109 2005-01-01 146 2006-01-01 173 2007-01-01 185 2008-01-01 224 2009-01-01 214 2010-01-01 231 2011-01-01 271 2012-01-01 255 2013-01-01 289 2014-01-01 310 2015-01-01 301 2016-01-01 282