condition mean min max 4 h after light 4.3268450000000005 4.11767 4.53602 8 h after light 4.741680000000001 4.60634 4.87702 12 h after light 6.66205 6.48628 6.83782 4 h after dark 6.190986666666666 6.06052 6.44057 8 h after dark 6.127433333333333 5.50552 6.92945 12 h after dark 6.078873333333333 5.72673 6.42181