Year Number of Firms 1997-01-01 34 2002-01-01 50 2003-01-01 56 2004-01-01 55 2005-01-01 67 2006-01-01 64 2007-01-01 80 2008-01-01 89 2009-01-01 78 2010-01-01 92 2011-01-01 88 2012-01-01 95 2013-01-01 99 2014-01-01 102 2015-01-01 100 2016-01-01 104