Year Number of Firms 1992-01-01 40 1997-01-01 35 2002-01-01 41 2003-01-01 45 2004-01-01 37 2005-01-01 54 2006-01-01 52 2007-01-01 49 2008-01-01 69 2009-01-01 77 2010-01-01 68 2011-01-01 69 2012-01-01 75 2013-01-01 59 2014-01-01 74 2015-01-01 69 2016-01-01 77