Year Number of Firms 1992-01-01 8 1997-01-01 6 2002-01-01 9 2003-01-01 15 2004-01-01 20 2005-01-01 18 2006-01-01 17 2007-01-01 11 2008-01-01 21 2009-01-01 23 2010-01-01 32 2011-01-01 30 2012-01-01 30 2013-01-01 38 2014-01-01 49 2015-01-01 42 2016-01-01 38