Year Number of Firms 1992-01-01 6 1997-01-01 19 2002-01-01 23 2003-01-01 33 2004-01-01 34 2005-01-01 30 2006-01-01 29 2007-01-01 34 2008-01-01 46 2009-01-01 29 2010-01-01 46 2011-01-01 35 2012-01-01 43 2013-01-01 45 2014-01-01 63 2015-01-01 77 2016-01-01 87