2020年のやつだけどDLsiteの年代別ランキングも興味深かった
https://i.imgur.com/hgB2UkG.png
https://i.imgur.com/P9SpYh2.png
https://i.imgur.com/ssh3vQ2.png
https://i.imgur.com/tU5rnf0.png
https://i.imgur.com/imoSOFG.png
https://i.imgur.com/EVGL4vd.png