Year	Number of Firms
1992-01-01	107
1997-01-01	161
2002-01-01	196
2003-01-01	219
2004-01-01	247
2005-01-01	245
2006-01-01	239
2007-01-01	270
2008-01-01	266
2009-01-01	233
2010-01-01	218
2011-01-01	243
2012-01-01	237
2013-01-01	239
2014-01-01	236
2015-01-01	224
2016-01-01	244