Year	Number of Firms
1992-01-01	375
1997-01-01	414
2002-01-01	434
2003-01-01	479
2004-01-01	514
2005-01-01	495
2006-01-01	514
2007-01-01	566
2008-01-01	689
2009-01-01	658
2010-01-01	643
2011-01-01	604
2012-01-01	575
2013-01-01	568
2014-01-01	570
2015-01-01	520
2016-01-01	521