Year Number of Firms 1992-01-01 11 1997-01-01 16 2002-01-01 12 2003-01-01 16 2004-01-01 25 2005-01-01 29 2006-01-01 31 2007-01-01 35 2008-01-01 31 2009-01-01 32 2010-01-01 41 2011-01-01 53 2012-01-01 59 2013-01-01 46 2014-01-01 48 2015-01-01 34 2016-01-01 40