https://imgur.com/vvCwbtu
┌──┬──────┬────┬──────────────────────┐
│排名│30日Gaon指数│发行日期│歌曲(不采计OST) │
├──┼──────┼────┼──────────────────────┤
│ １ │ 141,677,247│ 200427 │Oh My Girl - 微微心动(Nonstop) │
├──┼──────┼────┼──────────────────────┤
│ ２ │ 117,683,992│ 200413 │Apink - Dumhdurum │
├──┼──────┼────┼──────────────────────┤
│ ３ │ 84,319,095│ 200422 │Paul Kim - 我们的相遇 │
└──┴──────┴────┴──────────────────────┘
cr. https://guyso.me/gaon/monthlyjisu/2020/04
https://m.dcinside.com/board/gaon/2077899