Year	Number of Firms
1992-01-01	176
1997-01-01	337
2002-01-01	377
2003-01-01	404
2004-01-01	416
2005-01-01	412
2006-01-01	448
2007-01-01	479
2008-01-01	539
2009-01-01	380
2010-01-01	405
2011-01-01	426
2012-01-01	384
2013-01-01	396
2014-01-01	424
2015-01-01	406
2016-01-01	444