Year Number of Firms 1992-01-01 16 1997-01-01 20 2002-01-01 20 2003-01-01 26 2004-01-01 25 2005-01-01 28 2006-01-01 26 2007-01-01 47 2008-01-01 46 2009-01-01 56 2010-01-01 53 2011-01-01 60 2012-01-01 63 2013-01-01 69 2014-01-01 71 2015-01-01 65 2016-01-01 64