Year Number of Firms 1992-01-01 9 1997-01-01 24 2002-01-01 32 2003-01-01 31 2004-01-01 36 2005-01-01 33 2006-01-01 47 2007-01-01 57 2008-01-01 50 2009-01-01 74 2010-01-01 67 2011-01-01 76 2012-01-01 84 2013-01-01 75 2014-01-01 66 2015-01-01 71 2016-01-01 62