Year Number of Firms 1992-01-01 215 1997-01-01 359 2002-01-01 482 2003-01-01 490 2004-01-01 566 2005-01-01 554 2006-01-01 524 2007-01-01 564 2008-01-01 606 2009-01-01 606 2010-01-01 604 2011-01-01 666 2012-01-01 935 2013-01-01 1013 2014-01-01 1114 2015-01-01 1227 2016-01-01 1129