Year	Number of Firms
1992-01-01	180
1997-01-01	193
2002-01-01	240
2003-01-01	266
2004-01-01	312
2005-01-01	306
2006-01-01	358
2007-01-01	421
2008-01-01	463
2009-01-01	419
2010-01-01	381
2011-01-01	322
2012-01-01	257
2013-01-01	288
2014-01-01	296
2015-01-01	276
2016-01-01	275