Year Number of Firms 1992-01-01 65 1997-01-01 82 2002-01-01 88 2003-01-01 85 2004-01-01 85 2005-01-01 87 2006-01-01 97 2007-01-01 101 2008-01-01 121 2009-01-01 122 2010-01-01 131 2011-01-01 151 2012-01-01 148 2013-01-01 146 2014-01-01 143 2015-01-01 138 2016-01-01 140