Year	Number of Firms
1992-01-01	525
1997-01-01	569
2002-01-01	521
2003-01-01	511
2004-01-01	532
2005-01-01	568
2006-01-01	549
2007-01-01	572
2008-01-01	587
2009-01-01	531
2010-01-01	568
2011-01-01	571
2012-01-01	553
2013-01-01	527
2014-01-01	522
2015-01-01	477
2016-01-01	474