Year	Number of Firms
1992-01-01	261
1997-01-01	389
2002-01-01	427
2003-01-01	468
2004-01-01	476
2005-01-01	501
2006-01-01	490
2007-01-01	534
2008-01-01	539
2009-01-01	531
2010-01-01	557
2011-01-01	579
2012-01-01	529
2013-01-01	544
2014-01-01	505
2015-01-01	495
2016-01-01	467