Year	Number of Firms
1992-01-01	237
1997-01-01	279
2002-01-01	287
2003-01-01	284
2004-01-01	292
2005-01-01	285
2006-01-01	310
2007-01-01	318
2008-01-01	309
2009-01-01	317
2010-01-01	327
2011-01-01	319
2012-01-01	297
2013-01-01	313
2014-01-01	322
2015-01-01	311
2016-01-01	320