Year	Number of Firms
1992-01-01	355
1997-01-01	468
2002-01-01	445
2003-01-01	474
2004-01-01	494
2005-01-01	479
2006-01-01	507
2007-01-01	543
2008-01-01	535
2009-01-01	511
2010-01-01	535
2011-01-01	542
2012-01-01	567
2013-01-01	576
2014-01-01	613
2015-01-01	583
2016-01-01	585