Year Number of Firms 1992-01-01 2 1997-01-01 5 2002-01-01 16 2003-01-01 17 2004-01-01 18 2005-01-01 28 2006-01-01 26 2007-01-01 29 2008-01-01 45 2009-01-01 37 2010-01-01 34 2011-01-01 47 2012-01-01 54 2013-01-01 66 2014-01-01 73 2015-01-01 81 2016-01-01 72