Year Number of Firms 1992-01-01 8 1997-01-01 13 2002-01-01 30 2003-01-01 25 2004-01-01 17 2005-01-01 33 2006-01-01 31 2007-01-01 45 2008-01-01 38 2009-01-01 51 2010-01-01 59 2011-01-01 50 2012-01-01 59 2013-01-01 62 2014-01-01 66 2015-01-01 66 2016-01-01 47