Year Number of Firms 1992-01-01 7 1997-01-01 16 2002-01-01 19 2003-01-01 28 2004-01-01 38 2005-01-01 35 2006-01-01 39 2007-01-01 33 2008-01-01 49 2009-01-01 63 2010-01-01 68 2011-01-01 80 2012-01-01 75 2013-01-01 78 2014-01-01 79 2015-01-01 86 2016-01-01 69