Year Number of Firms 1992-01-01 2 1997-01-01 10 2002-01-01 15 2003-01-01 17 2004-01-01 20 2005-01-01 18 2006-01-01 25 2007-01-01 33 2008-01-01 33 2009-01-01 38 2010-01-01 43 2011-01-01 47 2012-01-01 52 2013-01-01 60 2014-01-01 78 2015-01-01 63 2016-01-01 47