condition mean min max 4 h after light 3.417635 3.16496 3.67031 8 h after light 4.843310000000001 4.70833 4.97829 12 h after light 4.793279999999999 4.53975 5.04681 4 h after dark 7.614565000000001 7.29349 7.93564 8 h after dark 6.344345000000001 6.34412 6.34457 12 h after dark 5.114885 4.89756 5.33221