Year	Number of Firms
1992-01-01	590
1997-01-01	884
2002-01-01	686
2003-01-01	658
2004-01-01	599
2005-01-01	582
2006-01-01	619
2007-01-01	645
2008-01-01	628
2009-01-01	583
2010-01-01	606
2011-01-01	591
2012-01-01	566
2013-01-01	598
2014-01-01	597
2015-01-01	555
2016-01-01	554