Year Number of Firms 1992-01-01 57 1997-01-01 63 2002-01-01 57 2003-01-01 68 2004-01-01 90 2005-01-01 91 2006-01-01 77 2007-01-01 73 2008-01-01 85 2009-01-01 75 2010-01-01 74 2011-01-01 79 2012-01-01 79 2013-01-01 72 2014-01-01 78 2015-01-01 91 2016-01-01 84