condition mean min max 4 h after light 2.00712 1.92504 2.0892 8 h after light 1.1397249999999999 1.1097 1.16975 12 h after light 1.791825 1.50022 2.08343 4 h after dark 0.9432915 0.936522 0.950061 8 h after dark 1.674835 1.55062 1.79905 12 h after dark 1.48326 1.42638 1.54014