Year	Number of Firms
1992-01-01	10791
1997-01-01	19644
2002-01-01	16887
2003-01-01	16533
2004-01-01	15108
2005-01-01	15357
2006-01-01	16505
2007-01-01	17907
2008-01-01	18152
2009-01-01	16794
2010-01-01	17668
2011-01-01	18449
2012-01-01	18476
2013-01-01	18166
2014-01-01	18034
2015-01-01	17487
2016-01-01	17050