Year	Number of Firms
1992-01-01	195
1997-01-01	224
2002-01-01	244
2003-01-01	252
2004-01-01	259
2005-01-01	258
2006-01-01	243
2007-01-01	257
2008-01-01	255
2009-01-01	254
2010-01-01	260
2011-01-01	261
2012-01-01	243
2013-01-01	222
2014-01-01	233
2015-01-01	227
2016-01-01	236