Year	Number of Firms
1992-01-01	180
1997-01-01	280
2002-01-01	353
2003-01-01	349
2004-01-01	361
2005-01-01	356
2006-01-01	371
2007-01-01	413
2008-01-01	448
2009-01-01	396
2010-01-01	415
2011-01-01	468
2012-01-01	455
2013-01-01	449
2014-01-01	449
2015-01-01	482
2016-01-01	477