Year Number of Firms 1992-01-01 113 1997-01-01 244 2002-01-01 500 2003-01-01 478 2004-01-01 474 2005-01-01 555 2006-01-01 637 2007-01-01 653 2008-01-01 746 2009-01-01 769 2010-01-01 865 2011-01-01 878 2012-01-01 882 2013-01-01 809 2014-01-01 921 2015-01-01 948 2016-01-01 965