condition mean min max 0 h after light 6.60348 4.77561 8.43135 2 h after light 3.820715 3.43143 4.21 4 h after light 5.040805 4.46418 5.61743 8 h after light 5.70981 5.52376 5.89586 12 h after light 5.791095 4.60454 6.97765 2 h after dark 6.440915 4.98911 7.89272 4 h after dark 7.07746 5.52576 8.62916 8 h after dark 8.122715 8.08081 8.16462 12 h after dark 7.17682 6.11725 8.23639