Year	Number of Firms
1992-01-01	193
1997-01-01	269
2002-01-01	359
2003-01-01	365
2004-01-01	366
2005-01-01	325
2006-01-01	335
2007-01-01	422
2008-01-01	463
2009-01-01	486
2010-01-01	496
2011-01-01	492
2012-01-01	461
2013-01-01	435
2014-01-01	410
2015-01-01	412
2016-01-01	381