Year Number of Firms 1992-01-01 10 1997-01-01 11 2002-01-01 17 2003-01-01 11 2004-01-01 21 2005-01-01 15 2006-01-01 38 2007-01-01 35 2008-01-01 43 2009-01-01 39 2010-01-01 51 2011-01-01 48 2012-01-01 60 2013-01-01 44 2014-01-01 52 2015-01-01 50 2016-01-01 48