2013 = 6
Juice=Juice announced 2/3/2013 (+6, 5 KSS)
2014 = 12
Morning Musume 12th gen added 9/30/2014 (+4, 2 KSS)
ANGERME 3rd gen added 10/4/2014 (+3 KSS)
Country Girls announced November 2014 (+5, discounting Tsugunaga, 2 KSS)
2015 = 17
Kobushi Factory announced 1/2/2015 (+8 KSS)
Tsubaki Factory announced 4/29/2015 (+6 KSS)
Country Girls 8th gen added 11/5/2015 (+2 KSS)
ANGERME 4th gen added 11/11/2015 (+1)
2016 = 6
ANGERME 5th gen added May 2016 (+1 KSS)
More Tsubaki Factory members added 8/13/2016 (+3 KSS)
Morning Musume 13th gen added 12/12/2016 (+2 KSS)
2017 = 8
Morning Musume 14th gen added 6/26/2017 (+1, Morito transfer)
ANGERME 6th gen added 6/26/2017 (+2, Funaki transfer, 1 KSS)
Juice=Juice 2nd gen added 6/26/2017 (+2, Yanagawa transfer, 1 KSS)
Ichioka/Takase/Kiyono announced June/July 2017 (+3 KSS)
2018 = 12
More Beyooooonds added 6/9/2018 (+6 KSS)
Juice=Juice 3rd gen added 6/13/2018 (+1, Inaba re-debut)
ANGERME 7th gen added 11/23/2018 (+2, 1 KSS)
Rest of Beyooooonds added 12/3/2018 (+3)
2019 = 2 so far
Juice=Juice 4th gen added 6/14/2019 (+2 KSS)
Morning Musume 15th gen added 6/22/2019 (+?)