Year	Number of Firms
1992-01-01	62
1997-01-01	121
2002-01-01	201
2003-01-01	232
2004-01-01	232
2005-01-01	255
2006-01-01	264
2007-01-01	290
2008-01-01	288
2009-01-01	292
2010-01-01	317
2011-01-01	309
2012-01-01	304
2013-01-01	306
2014-01-01	346
2015-01-01	337
2016-01-01	361