Year Number of Firms 1997-01-01 34 2002-01-01 54 2003-01-01 63 2004-01-01 55 2005-01-01 55 2006-01-01 75 2007-01-01 87 2008-01-01 90 2009-01-01 76 2010-01-01 83 2011-01-01 72 2012-01-01 69 2013-01-01 80 2014-01-01 93 2015-01-01 91 2016-01-01 86