Year Number of Firms 1992-01-01 10 1997-01-01 15 2002-01-01 20 2003-01-01 27 2004-01-01 35 2005-01-01 38 2006-01-01 37 2007-01-01 54 2008-01-01 60 2009-01-01 53 2010-01-01 56 2011-01-01 66 2012-01-01 61 2013-01-01 70 2014-01-01 70 2015-01-01 63 2016-01-01 61