Year Number of Firms 1992-01-01 12 1997-01-01 14 2002-01-01 12 2003-01-01 12 2004-01-01 17 2005-01-01 18 2006-01-01 16 2007-01-01 24 2008-01-01 31 2009-01-01 22 2010-01-01 37 2011-01-01 30 2012-01-01 26 2013-01-01 28 2014-01-01 29 2015-01-01 36 2016-01-01 23