Year Number of Firms 1992-01-01 26 1997-01-01 24 2002-01-01 33 2003-01-01 31 2004-01-01 33 2005-01-01 32 2006-01-01 36 2007-01-01 41 2008-01-01 50 2009-01-01 46 2010-01-01 52 2011-01-01 56 2012-01-01 58 2013-01-01 59 2014-01-01 68 2015-01-01 65 2016-01-01 58