Year Number of Firms 1992-01-01 42 1997-01-01 56 2002-01-01 52 2003-01-01 52 2004-01-01 60 2005-01-01 58 2006-01-01 60 2007-01-01 73 2008-01-01 85 2009-01-01 80 2010-01-01 73 2011-01-01 88 2012-01-01 85 2013-01-01 86 2014-01-01 84 2015-01-01 93 2016-01-01 82