Year Number of Firms 1992-01-01 43 1997-01-01 56 2002-01-01 56 2003-01-01 55 2004-01-01 53 2005-01-01 68 2006-01-01 85 2007-01-01 79 2008-01-01 87 2009-01-01 78 2010-01-01 83 2011-01-01 71 2012-01-01 80 2013-01-01 77 2014-01-01 70 2015-01-01 72 2016-01-01 77