Year Number of Firms 1992-01-01 8 1997-01-01 11 2002-01-01 22 2003-01-01 16 2004-01-01 24 2005-01-01 35 2006-01-01 29 2007-01-01 44 2008-01-01 38 2009-01-01 43 2010-01-01 36 2011-01-01 38 2012-01-01 36 2013-01-01 29 2014-01-01 33 2015-01-01 33 2016-01-01 37