condition mean min max 4 h after light 4.678185 3.96734 5.38903 8 h after light 2.798875 2.45222 3.14553 12 h after light 2.13492 2.06419 2.20565 4 h after dark 4.1883099999999995 4.01646 4.36016 8 h after dark 4.01325 3.983 4.0435 12 h after dark 5.117665000000001 4.69786 5.53747