Year	Number of Firms
1992-01-01	353
1997-01-01	391
2002-01-01	392
2003-01-01	279
2004-01-01	360
2005-01-01	392
2006-01-01	404
2007-01-01	433
2008-01-01	415
2009-01-01	365
2010-01-01	337
2011-01-01	348
2012-01-01	351
2013-01-01	297
2014-01-01	240
2015-01-01	167
2016-01-01	145