Year Number of Firms 1992-01-01 26 1997-01-01 43 2002-01-01 35 2003-01-01 48 2004-01-01 53 2005-01-01 59 2006-01-01 74 2007-01-01 76 2008-01-01 68 2009-01-01 39 2010-01-01 50 2011-01-01 45 2012-01-01 49 2013-01-01 40 2014-01-01 52 2015-01-01 47 2016-01-01 45