Year Number of Firms 1992-01-01 44 1997-01-01 54 2002-01-01 61 2003-01-01 72 2004-01-01 73 2005-01-01 64 2006-01-01 57 2007-01-01 64 2008-01-01 69 2009-01-01 65 2010-01-01 83 2011-01-01 84 2012-01-01 69 2013-01-01 64 2014-01-01 67 2015-01-01 59 2016-01-01 60