Year	Number of Firms
1992-01-01	316
1997-01-01	411
2002-01-01	404
2003-01-01	394
2004-01-01	407
2005-01-01	398
2006-01-01	367
2007-01-01	388
2008-01-01	412
2009-01-01	398
2010-01-01	390
2011-01-01	384
2012-01-01	420
2013-01-01	383
2014-01-01	393
2015-01-01	383
2016-01-01	370