Year	Number of Firms
1992-01-01	243
1997-01-01	385
2002-01-01	415
2003-01-01	400
2004-01-01	394
2005-01-01	361
2006-01-01	405
2007-01-01	433
2008-01-01	474
2009-01-01	435
2010-01-01	489
2011-01-01	494
2012-01-01	469
2013-01-01	475
2014-01-01	511
2015-01-01	500
2016-01-01	489