Year Number of Firms 1992-01-01 8 1997-01-01 21 2002-01-01 43 2003-01-01 46 2004-01-01 30 2005-01-01 31 2006-01-01 39 2007-01-01 46 2008-01-01 69 2009-01-01 46 2010-01-01 78 2011-01-01 73 2012-01-01 92 2013-01-01 68 2014-01-01 67 2015-01-01 46 2016-01-01 47