Year Number of Firms 1992-01-01 3 1997-01-01 9 2002-01-01 8 2003-01-01 13 2004-01-01 23 2005-01-01 15 2006-01-01 18 2007-01-01 21 2008-01-01 28 2009-01-01 13 2010-01-01 11 2011-01-01 29 2012-01-01 25 2013-01-01 30 2014-01-01 35 2015-01-01 28 2016-01-01 25