Year	Number of Firms
1992-01-01	258
1997-01-01	318
2002-01-01	384
2003-01-01	391
2004-01-01	382
2005-01-01	429
2006-01-01	412
2007-01-01	435
2008-01-01	452
2009-01-01	403
2010-01-01	417
2011-01-01	418
2012-01-01	442
2013-01-01	400
2014-01-01	389
2015-01-01	389
2016-01-01	401