Year	Number of Firms
1992-01-01	73
1997-01-01	94
2002-01-01	154
2003-01-01	172
2004-01-01	191
2005-01-01	216
2006-01-01	239
2007-01-01	284
2008-01-01	369
2009-01-01	323
2010-01-01	289
2011-01-01	304
2012-01-01	287
2013-01-01	331
2014-01-01	357
2015-01-01	326
2016-01-01	333