Year	Number of Firms
1992-01-01	144
1997-01-01	187
2002-01-01	194
2003-01-01	225
2004-01-01	222
2005-01-01	239
2006-01-01	226
2007-01-01	257
2008-01-01	260
2009-01-01	233
2010-01-01	255
2011-01-01	260
2012-01-01	242
2013-01-01	233
2014-01-01	229
2015-01-01	216
2016-01-01	223