Year	Number of Firms
1992-01-01	260
1997-01-01	464
2002-01-01	353
2003-01-01	340
2004-01-01	335
2005-01-01	313
2006-01-01	348
2007-01-01	373
2008-01-01	363
2009-01-01	328
2010-01-01	339
2011-01-01	360
2012-01-01	360
2013-01-01	355
2014-01-01	356
2015-01-01	344
2016-01-01	357