Year	Number of Firms
1992-01-01	256
1997-01-01	333
2002-01-01	326
2003-01-01	319
2004-01-01	346
2005-01-01	333
2006-01-01	351
2007-01-01	388
2008-01-01	391
2009-01-01	382
2010-01-01	396
2011-01-01	401
2012-01-01	384
2013-01-01	393
2014-01-01	391
2015-01-01	406
2016-01-01	414