Year	Number of Firms
1992-01-01	4243
1997-01-01	7346
2002-01-01	6188
2003-01-01	5975
2004-01-01	5457
2005-01-01	5301
2006-01-01	5712
2007-01-01	6282
2008-01-01	6293
2009-01-01	5797
2010-01-01	6077
2011-01-01	6266
2012-01-01	6198
2013-01-01	6122
2014-01-01	6072
2015-01-01	5754
2016-01-01	5687