Year	Number of Firms
1992-01-01	3471
1997-01-01	5267
2002-01-01	5151
2003-01-01	5109
2004-01-01	5160
2005-01-01	5173
2006-01-01	5343
2007-01-01	5700
2008-01-01	5994
2009-01-01	5631
2010-01-01	5978
2011-01-01	6048
2012-01-01	5910
2013-01-01	5741
2014-01-01	5737
2015-01-01	5580
2016-01-01	5656