Year	Number of Firms
1992-01-01	8
1997-01-01	51
2002-01-01	93
2003-01-01	84
2004-01-01	173
2005-01-01	270
2006-01-01	254
2007-01-01	315
2008-01-01	423
2009-01-01	334
2010-01-01	503
2011-01-01	833
2012-01-01	583
2013-01-01	646
2014-01-01	528
2015-01-01	314
2016-01-01	262