Year Number of Firms 1992-01-01 1 1997-01-01 6 2002-01-01 7 2003-01-01 9 2004-01-01 10 2005-01-01 14 2006-01-01 11 2007-01-01 20 2008-01-01 22 2009-01-01 16 2010-01-01 18 2011-01-01 24 2012-01-01 18 2013-01-01 22 2014-01-01 20 2015-01-01 27 2016-01-01 22