Year Number of Firms 1992-01-01 15 1997-01-01 20 2002-01-01 13 2003-01-01 26 2004-01-01 25 2005-01-01 33 2006-01-01 35 2007-01-01 34 2008-01-01 44 2009-01-01 42 2010-01-01 38 2011-01-01 35 2012-01-01 45 2013-01-01 56 2014-01-01 57 2015-01-01 63 2016-01-01 71