Year	Number of Firms
1992-01-01	187
1997-01-01	252
2002-01-01	281
2003-01-01	281
2004-01-01	278
2005-01-01	276
2006-01-01	278
2007-01-01	323
2008-01-01	334
2009-01-01	296
2010-01-01	288
2011-01-01	313
2012-01-01	291
2013-01-01	290
2014-01-01	279
2015-01-01	279
2016-01-01	303