Year	Number of Firms
1992-01-01	132
1997-01-01	410
2002-01-01	389
2003-01-01	378
2004-01-01	413
2005-01-01	364
2006-01-01	363
2007-01-01	405
2008-01-01	447
2009-01-01	428
2010-01-01	421
2011-01-01	360
2012-01-01	344
2013-01-01	328
2014-01-01	359
2015-01-01	353
2016-01-01	309