Year Number of Firms 1992-01-01 16 1997-01-01 30 2002-01-01 23 2003-01-01 23 2004-01-01 25 2005-01-01 34 2006-01-01 47 2007-01-01 55 2008-01-01 49 2009-01-01 49 2010-01-01 45 2011-01-01 49 2012-01-01 60 2013-01-01 65 2014-01-01 61 2015-01-01 73 2016-01-01 80