Year	Number of Firms
1992-01-01	358
1997-01-01	439
2002-01-01	481
2003-01-01	476
2004-01-01	501
2005-01-01	479
2006-01-01	488
2007-01-01	527
2008-01-01	557
2009-01-01	518
2010-01-01	531
2011-01-01	529
2012-01-01	513
2013-01-01	496
2014-01-01	495
2015-01-01	471
2016-01-01	488