Year Number of Firms 1992-01-01 31 1997-01-01 30 2002-01-01 38 2003-01-01 38 2004-01-01 49 2005-01-01 56 2006-01-01 53 2007-01-01 81 2008-01-01 74 2009-01-01 70 2010-01-01 89 2011-01-01 87 2012-01-01 76 2013-01-01 81 2014-01-01 92 2015-01-01 99 2016-01-01 93