Year	Number of Firms
1992-01-01	347
1997-01-01	481
2002-01-01	423
2003-01-01	485
2004-01-01	499
2005-01-01	580
2006-01-01	540
2007-01-01	603
2008-01-01	633
2009-01-01	591
2010-01-01	659
2011-01-01	640
2012-01-01	637
2013-01-01	604
2014-01-01	611
2015-01-01	569
2016-01-01	519