Year	Number of Firms
1992-01-01	176
1997-01-01	204
2002-01-01	330
2003-01-01	363
2004-01-01	409
2005-01-01	428
2006-01-01	445
2007-01-01	508
2008-01-01	583
2009-01-01	617
2010-01-01	628
2011-01-01	640
2012-01-01	581
2013-01-01	545
2014-01-01	557
2015-01-01	603
2016-01-01	626