Year Number of Firms 1992-01-01 87 1997-01-01 190 2002-01-01 440 2003-01-01 533 2004-01-01 542 2005-01-01 596 2006-01-01 661 2007-01-01 722 2008-01-01 728 2009-01-01 764 2010-01-01 757 2011-01-01 817 2012-01-01 831 2013-01-01 845 2014-01-01 858 2015-01-01 839 2016-01-01 857