Year Number of Firms 1992-01-01 512 1997-01-01 1072 2002-01-01 1540 2003-01-01 1644 2004-01-01 1978 2005-01-01 2020 2006-01-01 2280 2007-01-01 2631 2008-01-01 3146 2009-01-01 3169 2010-01-01 3363 2011-01-01 3564 2012-01-01 3706 2013-01-01 3844 2014-01-01 3992 2015-01-01 4040 2016-01-01 3785