Year Number of Firms 1992-01-01 35 1997-01-01 41 2002-01-01 51 2003-01-01 55 2004-01-01 56 2005-01-01 58 2006-01-01 60 2007-01-01 69 2008-01-01 80 2009-01-01 73 2010-01-01 96 2011-01-01 83 2012-01-01 83 2013-01-01 97 2014-01-01 90 2015-01-01 77 2016-01-01 68