Year Number of Firms 1992-01-01 578 1997-01-01 672 2002-01-01 700 2003-01-01 744 2004-01-01 817 2005-01-01 837 2006-01-01 823 2007-01-01 918 2008-01-01 968 2009-01-01 876 2010-01-01 919 2011-01-01 971 2012-01-01 915 2013-01-01 900 2014-01-01 942 2015-01-01 908 2016-01-01 912