Year Number of Firms 1992-01-01 4 1997-01-01 8 2002-01-01 12 2003-01-01 12 2004-01-01 13 2005-01-01 25 2006-01-01 30 2007-01-01 47 2008-01-01 65 2009-01-01 43 2010-01-01 51 2011-01-01 54 2012-01-01 72 2013-01-01 74 2014-01-01 107 2015-01-01 159 2016-01-01 104