Year	Number of Firms
1992-01-01	176
1997-01-01	288
2002-01-01	293
2003-01-01	275
2004-01-01	287
2005-01-01	283
2006-01-01	287
2007-01-01	307
2008-01-01	294
2009-01-01	311
2010-01-01	327
2011-01-01	357
2012-01-01	336
2013-01-01	308
2014-01-01	325
2015-01-01	317
2016-01-01	301