Year	Number of Firms
1992-01-01	308
1997-01-01	381
2002-01-01	367
2003-01-01	365
2004-01-01	405
2005-01-01	457
2006-01-01	469
2007-01-01	542
2008-01-01	605
2009-01-01	524
2010-01-01	557
2011-01-01	512
2012-01-01	496
2013-01-01	493
2014-01-01	499
2015-01-01	455
2016-01-01	427