Year Number of Firms 1992-01-01 8 1997-01-01 29 2002-01-01 18 2003-01-01 18 2004-01-01 30 2005-01-01 33 2006-01-01 33 2007-01-01 35 2008-01-01 35 2009-01-01 42 2010-01-01 44 2011-01-01 53 2012-01-01 51 2013-01-01 59 2014-01-01 62 2015-01-01 69 2016-01-01 61