Year Number of Firms 1992-01-01 3 1997-01-01 5 2002-01-01 24 2003-01-01 26 2004-01-01 25 2005-01-01 27 2006-01-01 30 2007-01-01 40 2008-01-01 30 2009-01-01 38 2010-01-01 29 2011-01-01 39 2012-01-01 37 2013-01-01 39 2014-01-01 38 2015-01-01 47 2016-01-01 29