Year Number of Firms 1992-01-01 5 1997-01-01 8 2002-01-01 12 2003-01-01 10 2004-01-01 17 2005-01-01 10 2006-01-01 24 2007-01-01 21 2008-01-01 27 2009-01-01 46 2010-01-01 44 2011-01-01 58 2012-01-01 57 2013-01-01 67 2014-01-01 43 2015-01-01 57 2016-01-01 47