Year Number of Firms 1992-01-01 12 1997-01-01 20 2002-01-01 22 2003-01-01 19 2004-01-01 28 2005-01-01 32 2006-01-01 49 2007-01-01 44 2008-01-01 55 2009-01-01 53 2010-01-01 68 2011-01-01 77 2012-01-01 70 2013-01-01 78 2014-01-01 85 2015-01-01 80 2016-01-01 72