Year Number of Firms 1992-01-01 33 1997-01-01 50 2002-01-01 60 2003-01-01 68 2004-01-01 88 2005-01-01 72 2006-01-01 79 2007-01-01 84 2008-01-01 87 2009-01-01 69 2010-01-01 89 2011-01-01 78 2012-01-01 86 2013-01-01 80 2014-01-01 90 2015-01-01 73 2016-01-01 70