Year	Number of Firms
1992-01-01	3455
1997-01-01	4050
2002-01-01	4012
2003-01-01	4096
2004-01-01	4167
2005-01-01	4019
2006-01-01	3910
2007-01-01	4315
2008-01-01	4508
2009-01-01	4372
2010-01-01	4431
2011-01-01	4495
2012-01-01	4331
2013-01-01	4361
2014-01-01	4458
2015-01-01	4383
2016-01-01	4412