Year Number of Firms 1992-01-01 11 1997-01-01 19 2002-01-01 22 2003-01-01 28 2004-01-01 25 2005-01-01 38 2006-01-01 39 2007-01-01 43 2008-01-01 39 2009-01-01 52 2010-01-01 51 2011-01-01 62 2012-01-01 49 2013-01-01 62 2014-01-01 59 2015-01-01 50 2016-01-01 51