Year	Number of Firms
1992-01-01	149
1997-01-01	267
2002-01-01	558
2003-01-01	351
2004-01-01	336
2005-01-01	317
2006-01-01	289
2007-01-01	281
2008-01-01	304
2009-01-01	325
2010-01-01	346
2011-01-01	365
2012-01-01	378
2013-01-01	397
2014-01-01	462
2015-01-01	470
2016-01-01	461