Year Number of Firms 1992-01-01 12 1997-01-01 29 2002-01-01 13 2003-01-01 22 2004-01-01 22 2005-01-01 27 2006-01-01 30 2007-01-01 32 2008-01-01 47 2009-01-01 38 2010-01-01 33 2011-01-01 49 2012-01-01 59 2013-01-01 54 2014-01-01 49 2015-01-01 35 2016-01-01 30