Year Number of Firms 1992-01-01 38 1997-01-01 61 2002-01-01 86 2003-01-01 64 2004-01-01 92 2005-01-01 90 2006-01-01 86 2007-01-01 113 2008-01-01 113 2009-01-01 119 2010-01-01 127 2011-01-01 164 2012-01-01 167 2013-01-01 159 2014-01-01 176 2015-01-01 172 2016-01-01 153