Year Number of Firms 1992-01-01 10 1997-01-01 16 2002-01-01 26 2003-01-01 14 2004-01-01 22 2005-01-01 23 2006-01-01 30 2007-01-01 37 2008-01-01 34 2009-01-01 33 2010-01-01 42 2011-01-01 39 2012-01-01 37 2013-01-01 42 2014-01-01 40 2015-01-01 40 2016-01-01 64