- 2009 April
- Group Started B4(２students)
- 2010 April
- D1(1) M1(2) B4(4)
- 2011 April
- D2(1) M2(2) M1(2) B4(2)
- 2012 April
- D3(1) M2(2) M1(4) B4(4)
- 2013 April
- M2(4) M1(4) B4(3)
- 2014 April
- D1(1) M2(4) M1(3) B4(4)
- 2015 April
- D2(1) D1(1) M2(4) M1(3) B4(4)
- 2016 April
- D3(1) D2(1) M2(3) M1(2) B4(3)
- 2017 April
- D3(2) D1(2) M1(3) B4(4)
- 2018 April
- D2(2) M2(3) M1(4) B4(3)
- 2019 April
- D3(2) D1(1) M2(4) M1(2) B4(4)
- 2020 April
- D2(1) M2(2) M1(4) B4(2)
- 2021 April
- D3(1) M2(4) M1(2) B4(4)
- 2022 April
- M2(2) M1(2) B4(5)
- 2022 Oct
- D1(1) M2(2) M1(2) B4(5)
- 2023 April
- D1(1) M2(2) M1(2) B4(3)
- 2024 April
- D2(1) M2(2) M1(3) B4(2)
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