Year Number of Firms 1992-01-01 30 1997-01-01 82 2002-01-01 80 2003-01-01 82 2004-01-01 89 2005-01-01 92 2006-01-01 104 2007-01-01 132 2008-01-01 120 2009-01-01 123 2010-01-01 140 2011-01-01 141 2012-01-01 161 2013-01-01 169 2014-01-01 181 2015-01-01 177 2016-01-01 160