Year	Number of Firms
1992-01-01	87
1997-01-01	131
2002-01-01	128
2003-01-01	136
2004-01-01	161
2005-01-01	161
2006-01-01	196
2007-01-01	221
2008-01-01	255
2009-01-01	240
2010-01-01	236
2011-01-01	260
2012-01-01	292
2013-01-01	295
2014-01-01	325
2015-01-01	274
2016-01-01	265