Year Number of Firms 1992-01-01 243 1997-01-01 379 2002-01-01 494 2003-01-01 523 2004-01-01 560 2005-01-01 616 2006-01-01 634 2007-01-01 679 2008-01-01 839 2009-01-01 924 2010-01-01 922 2011-01-01 1032 2012-01-01 1108 2013-01-01 1147 2014-01-01 1120 2015-01-01 945 2016-01-01 879