Year Number of Firms 1992-01-01 424 1997-01-01 619 2002-01-01 673 2003-01-01 705 2004-01-01 704 2005-01-01 741 2006-01-01 756 2007-01-01 786 2008-01-01 834 2009-01-01 855 2010-01-01 871 2011-01-01 895 2012-01-01 949 2013-01-01 959 2014-01-01 965 2015-01-01 924 2016-01-01 928