Year Number of Firms 1992-01-01 19 1997-01-01 24 2002-01-01 35 2003-01-01 44 2004-01-01 39 2005-01-01 41 2006-01-01 36 2007-01-01 44 2008-01-01 41 2009-01-01 38 2010-01-01 44 2011-01-01 48 2012-01-01 55 2013-01-01 64 2014-01-01 49 2015-01-01 52 2016-01-01 40