Year Number of Firms 1992-01-01 19 1997-01-01 23 2002-01-01 22 2003-01-01 26 2004-01-01 29 2005-01-01 42 2006-01-01 29 2007-01-01 47 2008-01-01 51 2009-01-01 66 2010-01-01 37 2011-01-01 48 2012-01-01 40 2013-01-01 40 2014-01-01 58 2015-01-01 55 2016-01-01 43