condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 10 h after light 0.0 0.0 0.0 14 h after light 0.019601333333333335 0.0 0.117608 18 h after light 0.10325833333333333 0.0 0.328213 2 h after dark 0.024293 0.0 0.145758