Year Number of Firms 1992-01-01 7 1997-01-01 8 2002-01-01 6 2003-01-01 8 2004-01-01 11 2005-01-01 14 2006-01-01 20 2007-01-01 27 2008-01-01 17 2009-01-01 24 2010-01-01 29 2011-01-01 27 2012-01-01 29 2013-01-01 31 2014-01-01 33 2015-01-01 41 2016-01-01 31