condition mean min max 4 h after light 14.19435 11.0227 17.366 8 h after light 22.367449999999998 21.5159 23.219 12 h after light 18.0842 16.4622 19.7062 4 h after dark 39.7953 35.4225 44.1681 8 h after dark 30.90515 29.6842 32.1261 12 h after dark 22.3724 19.3055 25.4393