condition mean min max 4 h after light 8.143353333333334 7.342664999999999 9.444229 8 h after light 8.399671666666666 5.026801 12.12438 12 h after light 11.93224 10.58018 13.97684 16 h after light 13.214773000000001 6.672809 18.31214 4 h after dark 13.336163333333333 10.39555 16.35204 8 h after dark 9.745698 7.682281 12.9824