Year Number of Firms 1992-01-01 31 1997-01-01 60 2002-01-01 29 2003-01-01 28 2004-01-01 38 2005-01-01 44 2006-01-01 54 2007-01-01 59 2008-01-01 61 2009-01-01 71 2010-01-01 76 2011-01-01 84 2012-01-01 71 2013-01-01 77 2014-01-01 71 2015-01-01 82 2016-01-01 75