Year	Number of Firms
1992-01-01	173
1997-01-01	259
2002-01-01	258
2003-01-01	307
2004-01-01	307
2005-01-01	355
2006-01-01	378
2007-01-01	416
2008-01-01	458
2009-01-01	428
2010-01-01	508
2011-01-01	530
2012-01-01	558
2013-01-01	552
2014-01-01	563
2015-01-01	566
2016-01-01	514