Year Number of Firms 1992-01-01 6 1997-01-01 9 2002-01-01 11 2003-01-01 22 2004-01-01 38 2005-01-01 50 2006-01-01 50 2007-01-01 64 2008-01-01 74 2009-01-01 81 2010-01-01 102 2011-01-01 114 2012-01-01 80 2013-01-01 73 2014-01-01 48 2015-01-01 43 2016-01-01 49