Year	Number of Firms
1992-01-01	186
1997-01-01	231
2002-01-01	305
2003-01-01	289
2004-01-01	292
2005-01-01	293
2006-01-01	335
2007-01-01	337
2008-01-01	437
2009-01-01	480
2010-01-01	547
2011-01-01	548
2012-01-01	529
2013-01-01	473
2014-01-01	519
2015-01-01	410
2016-01-01	344