Year	Number of Firms
1992-01-01	4081
1997-01-01	5482
2002-01-01	6449
2003-01-01	6480
2004-01-01	6509
2005-01-01	6152
2006-01-01	5965
2007-01-01	5906
2008-01-01	6107
2009-01-01	5788
2010-01-01	6394
2011-01-01	6518
2012-01-01	6318
2013-01-01	6369
2014-01-01	6272
2015-01-01	6102
2016-01-01	5817