condition mean min max 0 h after light 5.6933 5.2828 6.1038 2 h after light 3.478155 2.94264 4.01367 4 h after light 3.496945 3.37796 3.61593 8 h after light 2.559055 2.20212 2.91599 12 h after light 8.781575 7.79773 9.76542 2 h after dark 16.8916 16.3887 17.3945 4 h after dark 10.218544999999999 9.73909 10.698 8 h after dark 8.774625 8.17534 9.37391 12 h after dark 7.31053 6.39261 8.22845