Year Number of Firms 1992-01-01 7 1997-01-01 9 2002-01-01 15 2003-01-01 12 2004-01-01 27 2005-01-01 17 2006-01-01 21 2007-01-01 26 2008-01-01 38 2009-01-01 34 2010-01-01 44 2011-01-01 38 2012-01-01 38 2013-01-01 60 2014-01-01 68 2015-01-01 56 2016-01-01 46