Year Number of Firms 1992-01-01 72 1997-01-01 192 2002-01-01 414 2003-01-01 522 2004-01-01 588 2005-01-01 642 2006-01-01 751 2007-01-01 857 2008-01-01 862 2009-01-01 866 2010-01-01 935 2011-01-01 933 2012-01-01 1028 2013-01-01 1053 2014-01-01 1077 2015-01-01 1119 2016-01-01 1124