Year Number of Firms 1992-01-01 9328 1997-01-01 14468 2002-01-01 15627 2003-01-01 15821 2004-01-01 16486 2005-01-01 17362 2006-01-01 17494 2007-01-01 19232 2008-01-01 20997 2009-01-01 20069 2010-01-01 20427 2011-01-01 21124 2012-01-01 21113 2013-01-01 20783 2014-01-01 20718 2015-01-01 20020 2016-01-01 20281