Year	Number of Firms
1992-01-01	359
1997-01-01	427
2002-01-01	478
2003-01-01	489
2004-01-01	456
2005-01-01	470
2006-01-01	511
2007-01-01	557
2008-01-01	578
2009-01-01	542
2010-01-01	577
2011-01-01	643
2012-01-01	583
2013-01-01	561
2014-01-01	544
2015-01-01	538
2016-01-01	531