Year Number of Firms 1992-01-01 27 1997-01-01 48 2002-01-01 50 2003-01-01 61 2004-01-01 59 2005-01-01 60 2006-01-01 51 2007-01-01 71 2008-01-01 69 2009-01-01 74 2010-01-01 99 2011-01-01 88 2012-01-01 80 2013-01-01 90 2014-01-01 77 2015-01-01 79 2016-01-01 79