Year Number of Firms 1992-01-01 105 1997-01-01 151 2002-01-01 128 2003-01-01 154 2004-01-01 164 2005-01-01 208 2006-01-01 207 2007-01-01 217 2008-01-01 226 2009-01-01 202 2010-01-01 221 2011-01-01 222 2012-01-01 234 2013-01-01 213 2014-01-01 231 2015-01-01 212 2016-01-01 201