Year Number of Firms 1992-01-01 34 1997-01-01 29 2002-01-01 36 2003-01-01 43 2004-01-01 50 2005-01-01 42 2006-01-01 58 2007-01-01 58 2008-01-01 56 2009-01-01 67 2010-01-01 71 2011-01-01 65 2012-01-01 67 2013-01-01 71 2014-01-01 90 2015-01-01 67 2016-01-01 77