Year Number of Firms 1992-01-01 26 1997-01-01 44 2002-01-01 40 2003-01-01 44 2004-01-01 44 2005-01-01 48 2006-01-01 50 2007-01-01 62 2008-01-01 77 2009-01-01 74 2010-01-01 73 2011-01-01 93 2012-01-01 82 2013-01-01 81 2014-01-01 83 2015-01-01 71 2016-01-01 72