Year	Number of Firms
1992-01-01	178
1997-01-01	252
2002-01-01	224
2003-01-01	234
2004-01-01	243
2005-01-01	285
2006-01-01	301
2007-01-01	331
2008-01-01	317
2009-01-01	328
2010-01-01	315
2011-01-01	329
2012-01-01	335
2013-01-01	315
2014-01-01	319
2015-01-01	297
2016-01-01	270