Year Number of Firms 1992-01-01 55 1997-01-01 95 2002-01-01 102 2003-01-01 94 2004-01-01 96 2005-01-01 104 2006-01-01 127 2007-01-01 143 2008-01-01 135 2009-01-01 156 2010-01-01 157 2011-01-01 182 2012-01-01 187 2013-01-01 173 2014-01-01 163 2015-01-01 147 2016-01-01 170