Year	Number of Firms
1992-01-01	291
1997-01-01	436
2002-01-01	405
2003-01-01	415
2004-01-01	373
2005-01-01	363
2006-01-01	365
2007-01-01	407
2008-01-01	399
2009-01-01	383
2010-01-01	389
2011-01-01	433
2012-01-01	413
2013-01-01	422
2014-01-01	391
2015-01-01	377
2016-01-01	368