Year Number of Firms 1992-01-01 35 1997-01-01 61 2002-01-01 89 2003-01-01 83 2004-01-01 103 2005-01-01 128 2006-01-01 117 2007-01-01 130 2008-01-01 151 2009-01-01 147 2010-01-01 160 2011-01-01 172 2012-01-01 153 2013-01-01 176 2014-01-01 188 2015-01-01 194 2016-01-01 176