Year	Number of Firms
1992-01-01	194
1997-01-01	249
2002-01-01	268
2003-01-01	253
2004-01-01	276
2005-01-01	287
2006-01-01	270
2007-01-01	323
2008-01-01	329
2009-01-01	289
2010-01-01	296
2011-01-01	320
2012-01-01	297
2013-01-01	303
2014-01-01	310
2015-01-01	309
2016-01-01	321