condition mean min max 4 h after light 5.8107050000000005 4.514 7.10741 8 h after light 3.93231 3.86693 3.99769 12 h after light 4.8852150000000005 4.86657 4.90386 4 h after dark 6.27312 5.36459 6.83069 8 h after dark 6.384456666666667 5.79194 7.0653 12 h after dark 6.1169633333333335 4.97772 6.89935