condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0270147 0.0 0.0810441 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.0 0.0 0.0 6 h after dark 0.06587933333333333 0.0 0.197638 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0