Year Number of Firms 1992-01-01 30 1997-01-01 38 2002-01-01 34 2003-01-01 42 2004-01-01 54 2005-01-01 49 2006-01-01 40 2007-01-01 55 2008-01-01 60 2009-01-01 49 2010-01-01 60 2011-01-01 56 2012-01-01 46 2013-01-01 53 2014-01-01 53 2015-01-01 63 2016-01-01 65