Year Number of Firms 1992-01-01 16 1997-01-01 21 2002-01-01 24 2003-01-01 30 2004-01-01 33 2005-01-01 42 2006-01-01 39 2007-01-01 55 2008-01-01 59 2009-01-01 53 2010-01-01 63 2011-01-01 65 2012-01-01 58 2013-01-01 60 2014-01-01 58 2015-01-01 47 2016-01-01 56