Year	Number of Firms
1992-01-01	180
1997-01-01	262
2002-01-01	257
2003-01-01	282
2004-01-01	288
2005-01-01	301
2006-01-01	310
2007-01-01	364
2008-01-01	402
2009-01-01	413
2010-01-01	474
2011-01-01	521
2012-01-01	539
2013-01-01	543
2014-01-01	596
2015-01-01	606
2016-01-01	607