Year Number of Firms 1992-01-01 28 1997-01-01 30 2002-01-01 62 2003-01-01 70 2004-01-01 72 2005-01-01 74 2006-01-01 85 2007-01-01 111 2008-01-01 131 2009-01-01 130 2010-01-01 154 2011-01-01 170 2012-01-01 160 2013-01-01 173 2014-01-01 172 2015-01-01 199 2016-01-01 206