Year Number of Firms 1992-01-01 24 1997-01-01 32 2002-01-01 34 2003-01-01 42 2004-01-01 40 2005-01-01 43 2006-01-01 49 2007-01-01 55 2008-01-01 61 2009-01-01 52 2010-01-01 53 2011-01-01 59 2012-01-01 57 2013-01-01 45 2014-01-01 42 2015-01-01 44 2016-01-01 46