Year	Number of Firms
1992-01-01	239
1997-01-01	357
2002-01-01	377
2003-01-01	351
2004-01-01	366
2005-01-01	371
2006-01-01	365
2007-01-01	385
2008-01-01	424
2009-01-01	403
2010-01-01	410
2011-01-01	419
2012-01-01	420
2013-01-01	415
2014-01-01	427
2015-01-01	401
2016-01-01	398