嗨,我有以下熊猫dp
Year ID Participated Participation_Count
2016 1 0 0
2016 1 0 0
2016 1 1 1
2016 1 0 1
2017 1 1 1
2017 1 0 1
2017 1 0 1
2017 1 0 1
2018 1 1 1
2018 1 1 2
2018 1 1 3
2018 1 0 3
2016 2 0 0
2016 2 0 0
2016 2 0 0
2016 2 0 0
2017 2 0 0
2017 2 0 0
2017 2 1 1
2017 2 1 2
2018 2 1 1
2018 2 1 2
2018 2 1 3
2018 2 1 4
如何创建一个参与人数列,以查看给定ID和年份的参与总数。
谢谢!