Year Number of Firms 1992-01-01 466 1997-01-01 897 2002-01-01 2036 2003-01-01 2334 2004-01-01 2556 2005-01-01 2897 2006-01-01 3087 2007-01-01 3388 2008-01-01 3430 2009-01-01 3450 2010-01-01 3478 2011-01-01 3614 2012-01-01 3615 2013-01-01 3658 2014-01-01 3621 2015-01-01 3605 2016-01-01 3602