Year Number of Firms 1992-01-01 5 1997-01-01 21 2002-01-01 24 2003-01-01 27 2004-01-01 23 2005-01-01 39 2006-01-01 37 2007-01-01 49 2008-01-01 49 2009-01-01 36 2010-01-01 43 2011-01-01 49 2012-01-01 62 2013-01-01 60 2014-01-01 63 2015-01-01 73 2016-01-01 67