Year Number of Firms 1992-01-01 8 1997-01-01 18 2002-01-01 15 2003-01-01 20 2004-01-01 18 2005-01-01 22 2006-01-01 26 2007-01-01 11 2008-01-01 13 2009-01-01 14 2010-01-01 13 2011-01-01 19 2012-01-01 24 2013-01-01 33 2014-01-01 23 2015-01-01 29 2016-01-01 40