Year Number of Firms 1992-01-01 55 1997-01-01 63 2002-01-01 78 2003-01-01 74 2004-01-01 72 2005-01-01 80 2006-01-01 87 2007-01-01 90 2008-01-01 113 2009-01-01 133 2010-01-01 128 2011-01-01 144 2012-01-01 156 2013-01-01 151 2014-01-01 153 2015-01-01 153 2016-01-01 120