Year Number of Firms 1992-01-01 10 1997-01-01 14 2002-01-01 31 2003-01-01 25 2004-01-01 30 2005-01-01 28 2006-01-01 20 2007-01-01 24 2008-01-01 32 2009-01-01 47 2010-01-01 46 2011-01-01 46 2012-01-01 39 2013-01-01 41 2014-01-01 52 2015-01-01 46 2016-01-01 34