condition mean min max 3 h after light 0.056291 0.0 0.168873 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.07880425 0.0 0.315217 3 h after dark 0.0 0.0 0.0 6 h after dark 0.11551033333333333 0.0 0.346531 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0