condition mean min max 4 h after light 0.1577535 0.0 0.315507 8 h after light 0.086024 0.0 0.172048 12 h after light 0.066194 0.0 0.132388 4 h after dark 0.28437 0.0 0.704853 8 h after dark 0.0 0.0 0.0 12 h after dark 0.16935133333333333 0.0 0.368987