Board Thread:Wiki Business/@comment-24833026-20150730212808/@comment-24833026-20150805132440

another thing I was wondering, should we count the time a single is relased as the say they are active?? if so it would be like this
 * Fukuda Asuka - 1998-1999
 * Ichii Sayaka - 1999
 * Goto Maki - 1999-2000
 * Kago Ai - 2000-2001
 * Niigaki Risa - 2001-2003
 * Tanaka Reina - 2003-2004
 * Sugaya Risako - 2004-2005
 * Hagiwara Mai - 2005-2009
 * Ogawa Saki - 2009-2011
 * Suzuki Kanon - 2011
 * Tamura Meimi - 2011
 * Kudo Haruka - 2011-2015
 * Sasaki Rikako - 2015
 * Ozeki Mai - 2015
 * Haga Akane - 2015-Presnet