Year	Number of Firms
1992-01-01	249
1997-01-01	273
2002-01-01	306
2003-01-01	286
2004-01-01	318
2005-01-01	325
2006-01-01	290
2007-01-01	323
2008-01-01	334
2009-01-01	304
2010-01-01	307
2011-01-01	329
2012-01-01	293
2013-01-01	305
2014-01-01	311
2015-01-01	294
2016-01-01	274