Year Number of Firms 1992-01-01 5 1997-01-01 21 2002-01-01 30 2003-01-01 32 2004-01-01 36 2005-01-01 47 2006-01-01 46 2007-01-01 65 2008-01-01 75 2009-01-01 73 2010-01-01 72 2011-01-01 90 2012-01-01 107 2013-01-01 94 2014-01-01 97 2015-01-01 72 2016-01-01 72