Year	Number of Firms
1992-01-01	260
1997-01-01	323
2002-01-01	341
2003-01-01	335
2004-01-01	356
2005-01-01	337
2006-01-01	360
2007-01-01	400
2008-01-01	379
2009-01-01	369
2010-01-01	371
2011-01-01	394
2012-01-01	359
2013-01-01	372
2014-01-01	372
2015-01-01	337
2016-01-01	315