Year Number of Firms 1992-01-01 21 1997-01-01 37 2002-01-01 56 2003-01-01 68 2004-01-01 68 2005-01-01 75 2006-01-01 76 2007-01-01 86 2008-01-01 93 2009-01-01 77 2010-01-01 82 2011-01-01 90 2012-01-01 92 2013-01-01 80 2014-01-01 92 2015-01-01 104 2016-01-01 99