Year Number of Firms 1992-01-01 11 1997-01-01 24 2002-01-01 25 2003-01-01 22 2004-01-01 22 2005-01-01 26 2006-01-01 37 2007-01-01 44 2008-01-01 45 2009-01-01 31 2010-01-01 30 2011-01-01 37 2012-01-01 44 2013-01-01 35 2014-01-01 45 2015-01-01 47 2016-01-01 44