Year	Number of Firms
1992-01-01	117
1997-01-01	223
2002-01-01	265
2003-01-01	236
2004-01-01	328
2005-01-01	276
2006-01-01	282
2007-01-01	310
2008-01-01	317
2009-01-01	332
2010-01-01	356
2011-01-01	369
2012-01-01	381
2013-01-01	423
2014-01-01	470
2015-01-01	399
2016-01-01	431