condition mean min max 4 h after light 5.42633 5.32506 5.586130000000001 8 h after light 5.336433333333333 5.16538 5.47555 12 h after light 5.2724899999999995 5.17353 5.389869999999999 4 h after dark 5.30606 5.23759 5.35166 8 h after dark 5.281716666666667 5.08142 5.43874 12 h after dark 5.370533333333333 5.33095 5.414540000000001