Year	Number of Firms
1992-01-01	279
1997-01-01	349
2002-01-01	425
2003-01-01	404
2004-01-01	427
2005-01-01	411
2006-01-01	454
2007-01-01	411
2008-01-01	477
2009-01-01	391
2010-01-01	391
2011-01-01	393
2012-01-01	402
2013-01-01	388
2014-01-01	383
2015-01-01	356
2016-01-01	387