Year	Number of Firms
1992-01-01	257
1997-01-01	290
2002-01-01	284
2003-01-01	286
2004-01-01	316
2005-01-01	337
2006-01-01	320
2007-01-01	338
2008-01-01	375
2009-01-01	313
2010-01-01	329
2011-01-01	371
2012-01-01	352
2013-01-01	345
2014-01-01	330
2015-01-01	323
2016-01-01	283