Year Number of Firms 1992-01-01 1073 1997-01-01 2013 2002-01-01 2764 2003-01-01 2705 2004-01-01 2846 2005-01-01 2971 2006-01-01 3091 2007-01-01 3159 2008-01-01 3606 2009-01-01 3638 2010-01-01 4012 2011-01-01 4263 2012-01-01 4514 2013-01-01 4715 2014-01-01 4852 2015-01-01 4991 2016-01-01 5042