Year	Number of Firms
1992-01-01	140
1997-01-01	308
2002-01-01	293
2003-01-01	276
2004-01-01	287
2005-01-01	279
2006-01-01	271
2007-01-01	270
2008-01-01	298
2009-01-01	290
2010-01-01	304
2011-01-01	316
2012-01-01	305
2013-01-01	320
2014-01-01	309
2015-01-01	314
2016-01-01	322