Year Number of Firms 1992-01-01 1 1997-01-01 9 2002-01-01 5 2003-01-01 5 2004-01-01 10 2005-01-01 16 2006-01-01 16 2007-01-01 21 2008-01-01 25 2009-01-01 27 2010-01-01 19 2011-01-01 38 2012-01-01 36 2013-01-01 60 2014-01-01 56 2015-01-01 56 2016-01-01 57