Year Number of Firms 1992-01-01 40 1997-01-01 64 2002-01-01 54 2003-01-01 67 2004-01-01 76 2005-01-01 81 2006-01-01 85 2007-01-01 103 2008-01-01 108 2009-01-01 113 2010-01-01 135 2011-01-01 149 2012-01-01 147 2013-01-01 164 2014-01-01 146 2015-01-01 136 2016-01-01 128