Year Number of Firms 1992-01-01 16 1997-01-01 30 2002-01-01 31 2003-01-01 36 2004-01-01 52 2005-01-01 70 2006-01-01 65 2007-01-01 79 2008-01-01 81 2009-01-01 82 2010-01-01 105 2011-01-01 115 2012-01-01 105 2013-01-01 104 2014-01-01 110 2015-01-01 110 2016-01-01 105