Year Number of Firms 1992-01-01 44 1997-01-01 66 2002-01-01 73 2003-01-01 76 2004-01-01 82 2005-01-01 67 2006-01-01 63 2007-01-01 77 2008-01-01 69 2009-01-01 61 2010-01-01 58 2011-01-01 68 2012-01-01 69 2013-01-01 67 2014-01-01 80 2015-01-01 74 2016-01-01 84