Year	Number of Firms
1992-01-01	184
1997-01-01	325
2002-01-01	335
2003-01-01	306
2004-01-01	354
2005-01-01	339
2006-01-01	356
2007-01-01	375
2008-01-01	426
2009-01-01	399
2010-01-01	443
2011-01-01	443
2012-01-01	427
2013-01-01	534
2014-01-01	494
2015-01-01	487
2016-01-01	484