Year	Number of Firms
1992-01-01	310
1997-01-01	461
2002-01-01	437
2003-01-01	439
2004-01-01	489
2005-01-01	514
2006-01-01	521
2007-01-01	544
2008-01-01	553
2009-01-01	575
2010-01-01	604
2011-01-01	622
2012-01-01	614
2013-01-01	630
2014-01-01	618
2015-01-01	605
2016-01-01	593