Year Number of Firms 1992-01-01 4 1997-01-01 9 2002-01-01 9 2003-01-01 19 2004-01-01 27 2005-01-01 46 2006-01-01 51 2007-01-01 123 2008-01-01 151 2009-01-01 119 2010-01-01 149 2011-01-01 199 2012-01-01 209 2013-01-01 221 2014-01-01 238 2015-01-01 284 2016-01-01 197