Year Number of Firms 1992-01-01 21 1997-01-01 52 2002-01-01 51 2003-01-01 57 2004-01-01 62 2005-01-01 73 2006-01-01 58 2007-01-01 69 2008-01-01 78 2009-01-01 82 2010-01-01 95 2011-01-01 94 2012-01-01 90 2013-01-01 81 2014-01-01 89 2015-01-01 92 2016-01-01 82